Mathematics Middle School

The probability of choosing a red marble at random from a bag is 1/5. What are the odds in favor of choosing a red marble

Answers

Answer 1

Answer:

1 : 4

Step-by-step explanation:

You want the odds in favor of an event with a probability of 1/5.

Odds

The odds in favor of an event with probability p are ...

p : (1 -p)

Here, that is ...

1/5 : (1 -1/5) = (1/5) : (4/5) = 1 : 4

The odds in favor of choosing a red marble are 1 : 4.

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Answer 2

the answer would be 4

Related Questions

The stem-and-leaf plot displays data collected on the size of 15 classes at two different schools.

Bay Side School Seaside School
8, 6, 5 0 5, 8
8, 6, 5, 4, 2, 0 1 0, 1, 2, 5, 6, 8
5, 3, 2, 0, 0 2 5, 5, 7, 7, 8
3 0, 6
2 4
Key: 2 | 1 | 0 means 12 for Bay Side and 10 for Seaside

Part A: Calculate the measures of center. Show all work. (2 points)

Part B: Calculate the measures of variability. Show all work. (1 point)

Part C: If you are interested in a smaller class size, which school is a better choice for you? Explain your reasoning

Answers

Answer: Please refer below mentioned explanation.

Step-by-step explanation:

Part A:

For Bay Side School: To find the median, we arrange the data in ascending order: 0, 0, 2, 3, 4, 5, 5, 5, 6, 6, 8, 8, 8 There are 13 data points, so the median is the 7th value, which is 5.

To find the mean, we sum up all the data points and divide by the number of data points: Mean = (0 + 0 + 2 + 3 + 4 + 5 + 5 + 5 + 6 + 6 + 8 + 8 + 8) / 13 = 66 / 13 ≈ 5.08

For Seaside School: To find the median, we arrange the data in ascending order: 0, 0, 0, 1, 1, 2, 2, 5, 5, 5, 6, 7, 7, 8, 8 There are 15 data points, so the median is the 8th value, which is 5.

To find the mean, we sum up all the data points and divide by the number of data points: Mean = (0 + 0 + 0 + 1 + 1 + 2 + 2 + 5 + 5 + 5 + 6 + 7 + 7 + 8 + 8) / 15 = 57 / 15 ≈ 3.80

Part B:

For Bay Side School: Range = Maximum value - Minimum value = 8 - 0 = 8

For Seaside School: Range = Maximum value - Minimum value = 8 - 0 = 8

Part C:

Based on the measures of the center, Bay Side School has a higher mean and median compared to Seaside School. This suggests that, on average, Bay Side School tends to have larger class sizes than Seaside School. Therefore, if you are interested in a smaller class size, Seaside School would be a better choice. Additionally, both schools have the same range of 8, indicating that the spread of class sizes is similar between the two schools.

Answers

pretty sure its 75%, hopefully

Answer: 75%

Step-by-step explanation: most numbers seem to repeat so it might happen more often

HELEPEPEP HELEPEPPP QUICK!!!!!!

Answers

it’s y =x +32 it should be right

Answer:

y=x+32

Step-by-step explanation:

The initial value is the y-value when the x-value equals zero. In this case, the initial value is 32. In the equation y=mx+b, the initial value is the "b."

The slope is going to be the y-value divided by the x-value.

Count how many numbers to x-value goes up or down. In this case, it's positive 1. Count how many numbers the y-value goes up or down. In this case, it's also positive 1.

Now, divide the y-value by the x-value. It's 1/1, which equals 1.

So, that means that y=x+32 is the answer.

For a school project, Derek is investigating cell phone use in his hometown, Somerville. So far, he has found that the residents of Somerville used their cell phones for 11,609 minutes this year. Compared to last year, that is 30% more. For how many minutes did the residents of Somerville use their cell phones last year?

Answers

Answer:

Therefore, the residents of Somerville used their cell phones for approximately 8,930 minutes last year.

Step-by-step explanation:

To find out how many minutes the residents of Somerville used their cell phones last year, we can use the information given that this year's cell phone usage is 30% more than last year's.

Let's assume the cell phone usage last year was represented by the variable "x" (in minutes).

According to the information given, this year's cell phone usage is 30% more than last year's, so we can express this as:

x + 0.3x = 11609

Combining like terms, we have:

1.3x = 11609

To isolate the variable, we divide both sides of the equation by 1.3:

x = 11609 / 1.3

Simplifying the calculation, we find:

x ≈ 8930

Answer:

Therefore, the residents of Somerville used their cell phones for approximately 8,930 minutes last year.

Step-by-step explanation:

To find out how many minutes the residents of Somerville used their cell phones last year, we can use the information given that this year's cell phone usage is 30% more than last year's.

Let's assume the cell phone usage last year was represented by the variable "x" (in minutes).

Customers who buy a fidget toy sold by an online store can give the fidget toy a rating from 1 star to 5 stars. The frequency able shows the number of 1-star, 2-star, 3-star, 4-star, and -star ratings.

Answers

Answer:

The customer ratings for the fidget toy sold by the online store can be represented using a frequency table. The table displays the frequency or count of each rating category, ranging from 1 star to 5 stars. Here's an example of how the frequency table might look:

Rating Frequency

1 star 10

2 stars 20

3 stars 30

4 stars 15

5 stars 25

In this example, the frequency table indicates that there were 10 customers who rated the fidget toy as 1 star, 20 customers who rated it as 2 stars, 30 customers who rated it as 3 stars, 15 customers who rated it as 4 stars, and 25 customers who rated it as 5 stars.

By organizing the ratings into a frequency table, it becomes easier to analyze the distribution of ratings and understand the overall customer satisfaction for the fidget toy.

Step-by-step explanation:

I think this is correc

PLEASEEE HELPPP

The distance from the Sun to Planet A is 3.59×10^5 miles. The distance from the Sun to Planet B is 2.79×10^4 miles. How far is Planet A from Planet B in miles?

LOOK AT THE IMAGE NO WRONG ANWERS

Answers

Answer:

C: 0.8×10^1

Step-by-step explanation:

Im 99.9% sure this is right!

STOMP IF I'M WRONG

have a good day/night!

Answer:

3.311 ×10⁵ miles

Step-by-step explanation:

Distance between planet A and sun = 35.9 ×10⁴ miles

= 3.59 ×10⁵ miles

Distance between planet B and sun = 2.79 ×10⁵ miles

Distance between planet A and planet B = Distance between planet and sun - Distance between planet B and sun

= 3.59 ×10⁵ - 0.279 ×10⁵

= 3.311 ×10⁵ miles

Please answer the question below!! :)

Answers

Answer:

14,1

14,2

14,3

14,4

14,5

14,6

14,7

14,8

14,9

14,10

14,11

14,12

14,13

14,14

14,15

14,16

The equation is they are adding 1 on the Y so they are going 1 unit up.

Step-by-step explanation:

14 is X

and to solve coordinates graph

(X,Y)

Hope That's Help!

The answer is x=14 because you have no Y. If you put y= x+14 that would change your graph. Your y would be 14. So since x=14 is a vertical line. There is no y intercept and the slope is undefined

Find the area of the figure.

A. 100cm ^2

B. 106cm ^2

C. 90cm ^2

D. 41cm ^2

E. 95cm ^2

Answers

The answer is C. 80cm^2

the answer is c, 90cm^2

PLEASE NO WRONG ANSWERS

What is the sum of the angle measures in this shape?

A) 180∘

B) 540∘

C) 720∘

D) 360∘

Answers

Answer:

B) 540

Step-by-step explanation:

To find the sum of interior angles of a polygon, we can use the following formula:

(n-2)·180, where n is the number of sides the polygon has.

In this case, this polygon has 5 sides, which makes it a pentagon.

(n-2)·180

substitute

(5-2)·180

simplify

3·180

=540

So, the total sum is 540°.

Hope this helps! :)

Answer: B) 540 degrees

Step-by-step explanation:

The formula for interior angles of a polygon is 180(n-2). N is the number of sides.

Plug the given values into the equation:

180(5-2)=180*3=540

The sum of exterior angles of any polygon is 360 degrees. This problem didn't specify, so I would assume it's talking about interior angles, so the answer would be 540 degrees.

What is the surface area of the triangular prism?
A. 255cm ^2
B. 216cm ^2
C. 144cm ^2
D. 256cm ^2

Answers

Answer:

B. 216

Step-by-step explanation:

the formula for this is (S1+S2+S3) L+ BH

so when we plug that in it would be

(5+6+5)12+6*4

and when that is solved it ends up being 216

5 times 12 twice for the side 6 times 12 for the base and and 4 times 6 twice
120+72+24=216^2

HELPP PLEASE NO WRONG ANSWERS

What is the measure of the missing angle?

A) 89∘
B) 81∘
C) 91∘
D) 98∘

PLEASE LOOK AT THE IMAGE

Answers

I believe it’s 91.
All angles should add up to 360
Add up all the angles and you get 269
360 - 269 = 91

I believe the answer to your question is 91! C

Are the data shown in this line plot skewed left, skewed right, or not skewed?

skewed right
skewed left
not skewed

Answers

Answer: The answer is that the date is skewed left...

Step-by-step explanation: It's ironic, but if it's "heavier" on the left side, the data is right skewed, and vice versa.

The answer is that its skewed right. Its going to the right ->

hey girlies anyone know this?

Answers

Answer: 22.5 pounds

Step-by-step explanation:

The computation of the weight of the block of gel is shown below:

As we know that

Volume = (length) (width) (height)

= (20) (6 ) (6)

= 720 cubic inches

Now we have to convert into cubic foot

As we know that

1 ft = 12 inches

So 1ft^3 = 12 inches^3

= 1728 inches ^3
Now

= 720 × 1 cubic foot ÷ 1728 cubic inches

= 5 ÷ 12

Now the weight is = 54 × 5 ÷ 12=

22.5 pounds

multiplying, volume length width, and height get the 2.5 as the answer

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