USING SIMULATIONS TO CALCULATE ESTIMATED PROBABILITIES

3. A scientist wants to estimate the probability that a drought will happen in an area at least once over the next 4 years. The chances of a drought happening in a given year is 12%. She has generated 20 sets of 8 random numbers to help estimate the probability.

Part A: Before doing any calculations, use your intuition to predict the probability of a drought within the next 4 years if the probability of a drought in any one year is 12%. (1 point)
Scoring Notes: 1 point for any reasonable answer.

Part B: Which pairs of digits, starting at 00, represent a drought happening? Which pairs of digits, ending at 99, represent a drought not happening? (2 points)

Part C: Use the random numbers to estimate the probability that a drought happens at least once over the next 4 years. (7 points)

Part D: Is the probability that you calculated greater than or less than you predicted? Explain. (2 points)

Part E: If you change the pairs of digits that represent a drought happening so that they start at 10 instead of 00, does the estimated probability change? Calculate the estimated probability using the new ranges of numbers. (8 points)

USING SIMULATIONS TO CALCULATE ESTIMATED PROBABILITIES3. A Scientist Wants To Estimate The Probability

Answers

Answer 1

Estimated probabilities are predictions made based on past data, trends, and patterns. They provide an idea of the likelihood that an event will occur in the future.

Calculate estimated probabilities

Part A:

Answer: The probability of a drought within the next 4 years if the probability of a drought in any one year is 12% is approximately 48%.

Part B:

Answer: Pairs of digits starting at 00 and ending at 11 represent a drought happening. Pairs of digits starting at 88 and ending at 99 represent a drought not happening.

Part C:

Answer: Using the random numbers, the estimated probability that a drought happens at least once over the next 4 years is 68%.

Part D:

Answer: The probability that was calculated is greater than the probability predicted. This is because the sample size of 20 sets of 8 random numbers provided a more accurate and precise estimate than the intuition-based prediction.

Part E:

Answer: Yes, the estimated probability changes when the pairs of digits that represent a drought happening are changed so that they start at 10 instead of 00. Using the new ranges of numbers, the estimated probability that a drought happens at least once over the next 4 years is 64%.

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Answer 2

Estimated probabilities are predictions made based on past data, trends, and patterns. They provide an idea of the likelihood that an event will occur in the future.

Calculate estimated probabilities

Predictions based on historical data, patterns, and trends are known as estimated probability. They give a sense of how likely it is that a certain occurrence will take place in the future.

Estimated probabilities calculation Part A:

If the likelihood of a drought in any given year is 12%, the likelihood that one will occur within the next four years is roughly 48%.

Part B:

Answer: The drought is represented by pairs of numerals beginning at 00 and ending at 11. A drought that is not occurring is represented by pairs of digits that begin at 88 and terminate at 99.

Part C:

According to the random numbers, there is a 68% chance that a drought will occur at least once over the next four years.

Part D:

Answer: The calculated probability is higher than the expected probability. This is due to the fact that the estimate produced by the sample size of 20 sets of 8 random numbers was more precise and accurate than the intuition-based prediction.

Part E:

Answer: When the pairs of digits that represent the occurrence of a drought are modified so that they begin at 10 instead of 00, the predicted likelihood does indeed change. According to the revised ranges of figures, there is a 64% chance that a drought will occur at least once over the next four years.

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Related Questions

Write two different expressions you could use to represent the
combined area of the Activities and Quotations sections. What
information about the sections does each expression show?

Answers

The area expressions are (2x + 1) * (x^2 + 4x - 5) and 2x^3 + 9x^2 - 6x - 5

How to determine the area expressions

The missing figure is added as an attachment

From the question, we have the following parameters that can be used in our computation:

Length = 2x + 1

Width =  x^2 + 4x - 5

The area is calculated as

Area = (2x + 1) * (x^2 + 4x - 5)

When expanded, we have

Area = 2x^3 + 8x^2  -10x + x^2 + 4x - 5

Evaluate the like terms

Area = 2x^3 + 9x^2 - 6x - 5

Hence, the area expression is 2x^3 + 9x^2 - 6x - 5

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A grocery chain determines the cost and revenue models using the following functions: C(x)=1.2x−0.012x2, 0≤x≤150 R(x)=3.6x−0.06x20≤x≤150, where x is the number of unit items sold. Determine the interval on which the profit function P(x) = R(x) − C(x) is increasing.

Answers

Answer:

Yesterday I have received amount of be with you i need to pay

The interval on which the profit function is increasing is [0, 25).

Given that:

The cost function is, C(x) = 1.2x - 0.012x²

The revenue function is, R(x) = 3.6x - 0.06x²

Here, x i is the number of units sold, and 0 ≤ x ≤ 150.

The profit function is:

P(x) = R(x) - C(x)

      = (3.6x - 0.06x²) - (1.2x - 0.012x²)

      = 2.4x - 0.048x²

Find P'(x).

P'(x) = 2.4 - 0.096x

The profit function is increasing when P'(x) > 0.

2.4 - 0.096x > 0

2.4 > 0.096x

25 > x

That is x < 25.

Hence the function is increasing in the interval [0, 25).

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please help me with this math problem i’ll give you brainlist

Answers

Answer:

42=3.5x+2y

Step-by-step explanation:

3.5 is the cost of the cakes and 2 is the cost of the oreos. 42 is how much Francis can spend

1 funnel cakes = $3.50
1 deep fried oreos = $2.00
X = no. of funnel cakes
Y = no. of deep fried oreos
$42 = money spend
Thus,
3.5X + 2Y = 42

Find the component form of u + v given the lengths of u and v and the angles that u and v make with the positive x-axis. ||u||= 4, θu =6 , ||v|| = 1, θv = 4

Answers

The component of u+v along the length of u and v  is (6.3, 0.66).

A vector is quantity which has both magnitude and direction. A magnitude is the length of the vector.

Here in the question u and v makes angle with the positive x axis.

||u||= 4 and θu =6  and  ||v|| = 1, θv = 4

To determine the component of u = |u||(cosu, sinu)

Component of u = 6(0.9, 0.1) = (5.4, 0.6)

Component of v = ||v||(cosv sinv)

Component of v  along the x axis = 1(0.9, 0.06 ) = (0.9, 0.06)

In the question value of u+v needs to be find.

Value of u + v = (5.4 + 0.9 , 0.6+ 0.06)

Value of the component form of u + v = (6.3, 0.66).

Hence, the component of u+v along the length of u and v is (6.3, 0.66).

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The number N of locations of a popular coffeehouse chain is given in the table. (The numbers of locations as of October 1 are given.)Year 2004 2005 2006 2007 2008N 8,574 10,238 12,440 15,006 16,676a. Find the average rate of growth between each pair of years.2004 to 2006 _____ locations/ year2006 to 2007 _____ locations/ year2005 to 2006 _____ locations/ yearb. Estimate the instantaneous rate of growth in 2006 by taking the average of the last two rates of change in part (a).c. Estimate the instantaneous rate of growth in 2006 by measuring the slope of the tangent line through (2005, 10,238) and (2007, 15,006).d. Estimate the instantaneous rate of growth in 2007 by measuring the slope of the tangent line through (2006, 12,440) and (2008, 16,676).e. Compare the growth rates you obtained in part (c) and (d). What can you conclude?1. The rate of growth is increasing.2. The rate of growth is decreasing.3. The rate of growth is constant.4. There is not enough information.

Answers

a. To find the average rate of growth between each pair of years, we can use the formula: (end value - start value) / (end year - start year).

2004 to 2006: (12,440 - 8,574) / (2006 - 2004) = 3,866 / 2 = 1,933 locations/year

2006 to 2007: (15,006 - 12,440) / (2007 - 2006) = 2,566 / 1 = 2,566 locations/year

2005 to 2006: (12,440 - 10,238) / (2006 - 2005) = 2,202 / 1 = 2,202 locations/year

b. To estimate the instantaneous rate of growth in 2006, we can take the average of the last two rates of change from part (a).

(2,566 + 2,202) / 2 = 2,384 locations/year

c. To estimate the instantaneous rate of growth in 2006 by measuring the slope of the tangent line through (2005, 10,238) and (2007, 15,006), we can use the formula:

(15,006 - 10,238) / (2007 - 2005) = 4,768 / 2 = 2,384 locations/year

d. To estimate the instantaneous rate of growth in 2007 by measuring the slope of the tangent line through (2006, 12,440) and (2008, 16,676), we can use the formula:

(16,676 - 12,440) / (2008 - 2006) = 4,236 / 2 = 2,118 locations/year

e. Comparing the growth rates from part (c) and (d), we can see that the growth rate in 2007 is less than the growth rate in 2006. So we can conclude that 2. The rate of growth is decreasing.

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Determine the intercepts of the line.

yy-intercept:
(
(left parenthesis

,
,comma
)
)right parenthesis

xx-intercept:
(
(left parenthesis

,
,comma
)
)right parenthesis
A coordinate plane. The x- and y-axes each scale by one-tenth. A graph of a line intersects the points zero, four-tenths and three-tenths, zero.

Answers

rubs is the blue apple grape urus banana rasberry snow cone

Pythagoras is very tall for ancient Greck standards: 1.78 m. He notices that when he stands with his back to the sun, his shadow is 3.08 m in length, while the shadow cast by the lighthouse is 26 m long How tall is the lighthouse?

Answers

The lighthouse is 8.88 m tall.

What is the ratio?

A ratio is a mathematical comparison of two or more quantities. It expresses the relationship between the values of the quantities in terms of a numerical fraction.

This problem can be solved using similar triangles. Since the ratio of the heights of Pythagoras and the lighthouse is the same as the ratio of their corresponding shadow lengths, we can set up the following proportion:

(Height of lighthouse) / (Height of Pythagoras) = (Shadow length of lighthouse) / (Shadow length of Pythagoras)

Plugging in the given values:

(Height of lighthouse) / 1.78 = 26 / 3.08

To solve for the height of the lighthouse, we can cross-multiply and divide:

(Height of lighthouse) = (26 / 3.08) * 1.78

The lighthouse is approximately:

(26/3.08)*1.78 = 8.88 m

Hence, The lighthouse is 8.88 m tall.

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Given right triangle ABC, where side "c" is the hypotenuse, angle B measures 42 degrees, and side c measures 18 m, find the length of side b.

Answers

The length of side b of the given right angle triangle using law of sines is; b = 12.044 m

How to use the law of sines?

The law of sines states that when we divide side "a" by the sine of angle A, it is equal to side "b" divided by the sine of angle B, and also equal to side "c" divided by the sine of angle C

Thus;

a/sin A = b/sin B = c/sinC

The parameters are;

B = 42°

c = 18m

Since c is the hypotenuse, it is the side that will be opposite the right angle and so;

C = 90°

Thus, using sine rule;

c/sinC = b/sin B

18/sin 90 = b/sin 42

b = (18 * sin 42)/1

b = 12.044 m

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need the answer please

Answers

The number of feet that canyon wall away from the person will be 3,300 feet.

What is speed?

Speed is defined as the length traveled by a particle or entity in an hour. It is a scale parameter. It is the ratio of length to duration.

We know that the speed formula

Speed = Distance/Time

Sound travels about 750 miles per hour. If you stand in a canyon and sound a horn, you will hear an echo.

Convert the speed in feet per second. Then we have

Speed = 750 x 5280 / 3600

Speed = 1,100 feet per second

Let 'n' be the number of seconds. Then the distance is given as,

1,100 = (d / 2) / n

d = 2,200 n

If n = 1.5, then we have

d = 2,200 x 1.5

d = 3,300 feet

The number of feet that canyon wall away from the person will be 3,300 feet.

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h(n)=2/n -2 solve inverse function

Answers

Answer:

2/n+2

Step-by-step explanation:

One canned juice drink is 30% is orange juice, another is 5% orange juice. How many liters of each should be mixed together in order to get 25 Liters that is 27% orange juice?

Answers

The amount of juice for 30% orange juice is 22 liters,

and the amount of juice for 5% orange juice is 3 liters mixed together in order to get 25 Liters.

What is a linear equation?

When an algebraic equation is graphed, it always results in a straight line since each term in a linear equation has an exponent of 1. For this reason, it is referred to as a "linear equation."

There are both one-variable and two-variable linear equations.

Given One canned juice drink is 30% orange juice, another is 5% orange juice,

Let x and y be the amount of 30% and 5% orange juice respectively,

according to condition

0.30x + 0.05y = 0.27(25) .........(1)

x + y = 25.........(2)

Multiply the second equation by -0.05,

0.30x + 0.05y = 0.27(25)

-0.05x - 0.05y = -0.05(25)

Add equation to eliminate y,

0.30x - 0.05x + 0.05y - 0.05y = 0.27(25) - 0.05(25)

Solve for y,

0.25x = 5.5

x = 5.5/.25

x = 22

substitute value of x in equation,

x + y = 25

(22) + y = 25

y = 25 - 22

y = 3

Hence the amount of 30% orange juice is 22 liters and the amount of 5% orange juice is 3 liters.

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what is the hypothesis of the following conditional statement?
If we walk home from school, it takes 30 minutes.
a. we walk home from school
b. it takes 30 minutes
c. we do not walk home from school
d. we walk

Answers

The hypothesis of the conditional statement is;

Option A: we walk home from school

How to identify the hypothesis?

A hypothesis is defined as an educated guess while using reasonable thought patterns, about the answer to a scientific question.  Now, the hypothesis can either be supported or not supported at all, but then it depends on the data gathered.

A conditional statement is defined as a set of rules performed provided a certain condition is met. Thus, it is sometimes referred to as If-Then statement because if a condition is said to be met, then an action is said to have been performed " .

Thus, the conditional statement here is: " we walk home from school ".

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What is the solution to the system of equations?

6x-2y=-14
4x-3y=-31

A:(2,1)
B:(-6,11)
C:(2,13)
D:(-2,1)

Answers

The solution to the system of equations is 6x – 2y = -14 with x = -4 and y = -5

How to get perfect solution?

4x – 3y = -31

To find x or method, you must first make one of the words the same so that they may cancel out.

To determine the x terms, we will make the y terms the same in this example.

To do so, multiply the first equation by three, yielding:

18x – 6y = - 42

And multiply the second equation by two to get:

8x – 6y = - 62

Now that we have the y terms, you may cancel them out.

You now have the following two equations:

18x = -42

8x = -62

The next step is to combine them, since the preceding – and – form a +.

This implies that you are left with one equation

26x = -104

Now divide by 26 on each side to get:

x = -4

As you have x, you substitute it into one of the ORIGINAL equations.

6x – 2y = -14

Substitute x in:

6(-4) – 2y = -14

-24 – 2y = -14

Add 24 on each side to get:

-2y = 10

y = -5

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There are three quarters, five dimes, and twelve pennies in a bag.
Once a coin is drawn from the bag, it is not replaced. If two coins
are drawn at random, determine each probability.

1. P(a quarter and then a penny)

2. P(a nickel and then a dime)

3. P(two pennies)

4. P(a dime and then a quarter)

Answers

The probability for these are

Probability(a dime and then a quarter)=3/76

Probability(two pennies)=33/95

 Probability(a quarter and then a penny)=9/95

What is probability?

Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one. Probability has been introduced in Maths to predict how likely events are to happen. The meaning of probability is basically the extent to which something is likely to happen. This is the basic probability theory, which is also used in the probability distribution, where you will learn the possibility of outcomes for a random experiment. To find the probability of a single event to occur, first, we should know the total number of possible outcomes.

Probability of event to happen P(E) = Number of favourable outcomes/Total Number of outcomes

Now,

Quarters=3, Dimes=5 and Pennies=12

Total=20

Probability(a dime and then a quarter)=5/20*3/19=15/380=3/76

Probability(two pennies)=12/20*11/19=132/380=33/95

 Probability(a quarter and then a penny)=3/20*12/19=36/380=9/95

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Si el costo de 1 Kg de azucar es $8?cual es el precio de 3 3/4 kg?

Answers

On evaluating the fraction 3 3/4 the cost of 3 3/4 kg of sugar is $30.

What is fraction?

In mathematics, a fraction is used to denote a portion or component of the whole. It stands for the proportionate pieces of the whole. Numerator and denominator are the two components that make up a fraction. The numerator is the number at the top, and the denominator is the number at the bottom.

The cost of 1 kg of sugar is = $ 80

The amount of sugar is given in fractional form - 3 3/4 kg

The equation for cost of 3 3/4 kg sugar is -

Cost = 3 3/4 × 8

Solve the fractional part first -

Cost = 15/4 × 8

Simplify the equation -

Cost = 15/4 × 8

Cost = 120/4

Cost = 30

Therefore, the cost value is obtained as $ 30.

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If the cost of 1 kg of sugar is $8, what is the price of 3 3/4 kg?

Please answer this question for me

Answers

Using properties of triangles, Correct options are A,B and D. AE = EB, EG || AC and AC = 2 EG.

A triangle has three sides, three angles, and three vertices, which are its characteristics.

A triangle's total internal angles are always equal to 180 degrees. This is referred to as the triangle's angle sum property.

Any two triangle sides can add up to a length that is longer than the third side.

A triangle's total angles are always 180 degrees.

A triangle's outside angles are always a sum of 360 degrees.

The total of the parallel interior and exterior angles is additional.

From the given figure,

As E is the mid point of BA,

So, BE = EA

As it is clearly seen that EG is parallel to AC = EG||AC

Further,

As, EG is intersecting AB and BC at mid points,

⇒ AC = 2EG

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List the elements of each of the following sample spaces: (a) the set of integers between 1 and 50 divisible by 8. (b) the set S = (x1x2 + 4x - 5 -0. (c) the set of outcomes when a coin is tossed until a tail or three heads appear. (d) the set S = {x|2x - 4 20 and x < 1)

Answers

a)The set of integers between 1 and 50, divisible by 8 are given as.

S={ 8,16,24,32,40,48}

b ) Hence, the set {-5,1}

c) The list of set of outcomes when a coin is tossed until a tail or three heads appear will be.

S={T,HT,HHT,HHH}

d) S={Europe, Asia, Australia, North America, South America, Africa, Antarctica.}

a) We have to find a list of integers between 1 and 50, divisible by 8.

Keep in mind that the S is the event that represents the sample space. The set of integers between 1 and 50, divisible by 8 are given as.

S={ 8,16,24,32,40,48}

b)  We need to list the set S= {[tex]x| x^2+4x-5=0}[/tex]}

[tex]x^2+4x-5=0\\\\x^2+5x-x-5=0\\x(x+5)-(x+5)==\\(x+5)(x-1)=0\\\\x=-5 , x=1[/tex]

Hence, the set {-5,1}

c) c) We have to find a list of the set of outcomes when a coin is tossed until a tail or three heads appear.

Let T denote the event that tail appeared.

Let H denote the event that head appeared.

The list of set of outcomes when a coin is tossed until a tail or three heads appear will be.

S={T,HT,HHT,HHH}

d) We need to list the set

S={x ∣ x is a continent}.

There are 7 continents:

S={Europe, Asia, Australia, North America, South America, Africa, Antarctica.}

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How do I do this problem I do not get it do I add when I found the volume of both

Answers

Answer:

206

Step-by-step explanation:

cube volume = 5*5*5 +3*3*3 = 125+81 = 206

Find the value for the following determinant

Answers

Answer:

42

Step-by-step explanation:

determinant of matrix

= 5(2) - 8(-4)

= 10 - (-32)

= 10 + 32

= 42

Answer:

32

Step-by-step explanation:

the determinant of matrix

[tex]\left[\begin{array}{ccc}a&b\\c&d\\\end{array}\right][/tex] = ad - bc

then

[tex]\left[\begin{array}{ccc}5&-4\\8&2\\\end{array}\right][/tex]

= (5 × 2) - (- 4 × 8) = 10 - (- 32) = 10 + 32 = 42

Standardized tests for certain subjects, given to high school students, are scored on a scale of 1 to 5. Let A represent the score on a randomly selected exam for subject A and let B represent the score on a randomly selected exam for subject B. The distributions of scores for each subject’s standardized tests are displayed in the table and the histograms.

Answers

The probability of a score lower than three is given as follows:

0.38.

How to obtain the probabilities?

A probability is obtained as the division of the number of desired outcomes by the number of total outcomes.

As the table gives the probability distribution, we must just take the probabilities of the desired events from the table.

The probability of a score lower than three is given as follows:

P(X < 3) = P(X = 1) + P(X = 2).

Taking the values from the table, the probability is of:

P(X < 3) = 0.18 + 0.20

P(X < 3) = 0.38.

Missing Information

The problem is given by the image presented at the end of the answer.

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determine its average speed when it goes around the closed path. express your answer to three significant figures and include the appropriate units.

Answers

The average speed is 0 m/s since the object does not move.

Since the object does not change its position, it does not move. Therefore, its average speed is 0 m/s.

The object in question does not move in a closed path, meaning that its position remains the same throughout the entire path. As a result, its average speed is 0 m/s. This is because average speed is the total distance traveled divided by the total time taken, and since the object does not move its distance traveled is 0 and its time taken is also 0. Therefore, when the object goes around the closed path, its average speed is 0 m/s.

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Your kite is stuck in a tree that is 45 feet tall. The angle your string makes with the ground is 68°. Rather than worrying about the kite, you decide to calculate how much string you have let out. Assuming the string is held tight and makes a straight line to the ground, how much string have you let out?

Answers

Answer:

48.53 = 49 feet

Step-by-step explanation:

sin 0 = opposite/hypotenuse

sin 68 = AB/AC = 45/x

x = 45/sin 68 = 45/0.9272 = 48.53

48.53 rounded = 49 feet

Answer:

You have let out 48.5 feet of string

Step-by-step explanation:

Attached is a sketch of the problem.

We can use SOH CAH TOA to find our answer.

In this acronym, O is the opposite side, A is the adjacent side, and H is the hypotenuse. S is for the SIN function. C is for the COS function. T is for the TAN function.

We can calculate the length of the string by using the SIN function.

So we can say the sine of angle x is the opposite side divided by the hypotenuse.

[tex]sin(x)=\frac{O}{H}[/tex]

Lets solve for [tex]H[/tex].

Multiply each term by [tex]H[/tex].

[tex]H*sin(x)=\frac{O}{H} *H[/tex]

Simplify the right side by cancelling the common factor of [tex]H[/tex].

[tex]H*sin(x)=O[/tex]

Divide both sides of the equation by [tex]sin(x)[/tex].

[tex]\frac{H*sin(x)}{sin(x)} =\frac{O}{sin(x)}[/tex]

Simplify the right side by cancelling the common factor of [tex]sin(x)[/tex].

[tex]H=\frac{O}{sin(x)}[/tex]

Now lets evaluate the length of the string.

In this example we are given

[tex]x=68\\O=45[/tex]

[tex]H=\frac{45}{sin(68)}[/tex]

[tex]H=48.5341[/tex]

Factor the following examples of difference perfect squares for X to power of 2-9

Answers

Answer: X^2 - 9 can be factored into (X - 3)(X + 3) which is the difference of squares.

The difference of squares factorization of X^2 - 9 is (X - 3)(X + 3)

Step-by-step explanation:

if the relation represents a function, find the domain and range. (enter your answers using interval notation. if the relation is not a function, enter none in the domain and range answer blanks.)

Answers

If the relation is represented by the equation y = 2x + 1, the domain would be all real numbers (-infinity, +infinity) and the range would be all real numbers greater than or equal to 1 (1, +infinity).

A relation is a function if for every input (x) there is exactly one output (y). To determine if a relation is a function, we can use the vertical line test, which states that if a vertical line can be drawn through the graph and intersects the relation more than once, then the relation is not a function.

If the relation is a function, we can find the domain and range by analyzing the relation. The domain is the set of all x-values and the range is the set of all y-values. In interval notation, the domain is written as (a, b) and the range is written as (c, d).

So, the domain and range answers depend on the relation which is given and it should be specified.

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Which object is about 15 centimeters long? Responses pencil, desk, paper, clip or television

Answers

The object that is about 15 cm is pencil.

What is Measurement?

The fundamental idea in the study of science and mathematics is measurement. The qualities of an object or event can be quantified so that we can compare them to those of other objects or occurrences. When discussing the division of a quantity, measurement is the word that is used the most frequently.

Given:

Measurement = 15 cm

As, the average length for the pencil varies from 7 cm - 17 cm.

and, average length for the desk is 120 cm.

and, the average length for the paper is 30.3 x 40.6cm.

and, the average length for the clip is 4 cm.

and, the average length for the television is 40 cm.

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Santiago has planned a basketball game for the weekend.
The chance of snow on Saturday is 35%, with a 70% chance on
Sunday. If these probabilities are independent, what is the
chance that it will snow on both days?

Answers

The probability that it will snow on both days, given the chances of snow on Saturday and Sunday, is 24.5%.

How to find the probability ?

The chance of it snowing on both days is calculated by multiplying the probability of it snowing on Saturday by the probability of it snowing on Sunday. If the probabilities are independent, we can assume that one event occurring doesn't affect the other event, therefore the probability of both events happening is just the product of the individual event probabilities.

So, the chance of it snowing on both days is:

P(Saturday and Sunday) = P(Saturday) x P(Sunday)

P(Saturday and Sunday) = 0.35 x 0.70

P(Saturday and Sunday) = 24.5 %

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Our school purchased 100 new computers. Of those are 1/5 broken. How many computers are broken?​

Answers

Answer:

20

Step-by-step explanation:

1/5 = 20/100

Answer and Explain Please

Answers

a) The final coordinates are given as follows:

X(-5,-4) -> X'(-4,5).Y(2,-2) -> Y'(-2,-2).Z(-3,-6) -> Z'(-6,3).

b) The rotation rule is given as follows: (x,y) -> (y,-x).

What are the rotation rules?

The five more known rotation rules are given as follows:

90° clockwise rotation: (x,y) -> (y,-x)90° counterclockwise rotation: (x,y) -> (-y,x)180° clockwise and counterclockwise rotation: (x, y) -> (-x,-y)270° clockwise rotation: (x,y) -> (-y,x)270° counterclockwise rotation: (x,y) -> (y,-x)

The rotation in this problem is the last rotation, 270º counterclockwise about the origin, hence the rule is given as follows:

(x,y) -> (y,-x).

The rule is applied to each of the vertices X, Y and Z to obtain the vertices of the reflected triangle X', Y' and Z'.

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1. You are trying to decide where the best place to get a pizza delivered from as quickly as possible. Here are the several delivery times of some local pizza places (in minutes).
Ronny’s: 24, 38, 31, 27, 40, 21, 34, 19
John and Mary’s: 18, 69, 22, 27, 32, 25, 16, 25
Penora’s: 19, 42, 23, 42, 24, 39, 20, 25

Use the information above to answer all five questions below. Be detailed in your answer and provide work for all but the five number summary.
A. Find the five number summary, mean, standard deviation, range and interquartile range for all three local pizza places.

B. Determine if there are any outliers for the three pizza places. List the outliers if any for each pizza place.

C. What place do you think Allison and Emily should order from? How did you determine this?

D. For each pizza place, which measure of central tendency (mean or the median) represents the data the best and why?

E. If you were to plot the data for each pizza company, how would the data be described? (Symmetric, Skewed left or Skewed right)

2. Ms. McGregor is a teacher at Wendover High. She surveyed her students to find out how far from school her students lived. The following data is the distance between the school and her students' homes, in miles:

9
10
7
7
8
10
11
10
5
9
8
7
5
2
10
10
14
8
7
4

Use the data provided above to answer the questions below:

Create a boxplot for Ms. McGregor’s class and display it on a number line. Make sure to label your number line clearly so it easy to determine the accuracy of your calculations.

Create a frequency table and histogram of the number of miles students are from the school in the space provided below for Mrs. McGregor’s class


Intervals
Frequency
0 - 3


3 - 6


6 - 9


9 - 12


12 - 15






3. Jonathan compared the ounces in and prices of several different cereals at the grocery store. Here are his results:

ounces
Price (in dollars)
32
$3.89
28
$2.79
42
$4.19
8
$1.00
27
$3.15
12
$2.25


Use the information listed above to answer all questions:

A. Find the line of best fit. Round any decimals to the hundredths place:
y = _____________________
Find the correlation coefficient and explain what it means in the context of the problem:
Correlation coefficient: _____ Explanation:

C. Estimate the price when you have a weight of 48 ounces. Show all work for credit.

D. Estimate the ounces when you have a price of $3.50. Show all work for credit.

E. Find the residuals for your data. You can provide a screenshot from your calculator or
show all work to identify your residuals.

F. Provide a screenshot of your residual plot from your calculator below.

G. Explain if your equation is a good fit for your data based on your screenshot from your
residual plot

Answers

Answer:

Step-by-step explanation:

In a​ right-skewed distribution, which of the following is​ true? The mean tends to be greater than the median.

Sales of portable MP3 players grew approximately exponentially from $0.08 billion in 1999 to $0.88 billion in 2004. Predict the sales of MP3 players in 2008.
The sales of MP3 players in 2008 is $ billion.
(Type an integer or a decimal. Round the final answer to one decimal place as needed. Round all intermediate values to three decimal places as needed.)

Answers

Based on the exponential function, the sales of MP3 players in 2008 is $1.82 billion.

What is an exponential function?

An exponential function is a function that has the general form y = abˣ

where

a ≠ 0,

b is the base b is a constant (b is a positive real number and b ≠ 1)

x is the independent variable whose domain is the set of real numbers.

Using the equation for exponential growth

y = ab^x

y = 0.88

a = 0.08

0.88 = 0.08bˣ

bˣ = 0.88/0.08

bˣ = 11

x = 4

Hence;

b⁴ = 11

b = 1.82

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