Ask question

Ask question

All categories

2 years ago

11

A school conducted a survey to find out which games students enjoy watching the most. The table below contains the results of th

e survey. Grade Basketball Baseball Football Soccer Tennis Other Marginal Totals Elementary School 51 18 26 32 4 6 137 Middle School 50 24 44 34 7 18 177 High School 42 17 58 36 11 24 188 Marginal Totals 143 59 128 102 22 48 502 What is the relative frequency of middle school students among students who watch soccer the most?

2 answers:

uysha [10]2 years ago

8 0

Answer:

The relative frequency of the middle school students who watch soccer the most is 33.3%.

Step-by-step explanation:

We are given the table,

Grade Basketball Baseball Football Soccer Tennis Other Total

Elementary 51 18 26 32 4 6 137

Middle 50 24 44 34 7 18 177

High 42 17 58 36 11 24 188

Total 143 59 128 102 22 48 502

Now, we are required to find the relative frequency of the middle school students who watch soccer.

Since, we know,

Total number of students who watch soccer = 102

Number of middle school students who watch soccer = 34

Thus, the relative frequency of the middle school students = $\frac{34}{102}$ = 0.333 i.e. 33.3%

Hence, the relative frequency of the middle school students who watch soccer the most is 33.3%.

Andrew [12]2 years ago

4 0

Answer

A. Football is most popular among high school students.

Step-by-step explanation:

You might be interested in

Cate pahare de 10 cl se pot umple ce sucul dintr-o cutie de 100 cl?

Bumek [7]

English plzz ? I don't understand Spanish

3 0

1 year ago

Connect in Justin's school, 0.825 of the students participate in a school sport. If there are thousand students in Justin school

ddd [48]

825. That is what 0.825 represents.

Please vote my answer brainliest . thanks!

3 0

2 years ago

Read 2 more answers

A polling agency reported that 66 percent of adults living in the United States were satisfied with their health care plans. The

Tpy6a [65]

Answer:

A) The probability is 0.95 that the percent of adults living in the United States who are satisfied with their health care plans is between 63.6% and 68.4%.

Step-by-step explanation:

A polling agency reported that 66 percent of adults living in the United States were satisfied with their health care plans. The estimate was taken from a random sample of 1,542 adults living in the United States, and the 95 percent confidence interval for the population proportion was calculated as (0.636, 0.684).

This means that we are 95% sure that the true proportion of adults living in the United States who were satisfied with their health care plans is between 0.636 and 0.684.

So the correct answer is:

A) The probability is 0.95 that the percent of adults living in the United States who are satisfied with their health care plans is between 63.6% and 68.4%.

7 0

1 year ago

Mrs. Garcia borrowed some money at the rate of 4% per annum for the first year, at the rate of 6% pe r annum for the next 2 year

s2008m [1.1K]

Answer: ₱40,909.1

Step-by-step explanation:

Given data:

Rate for first year = 4%

Rate for next two years = 6%

Rate for the next 3 years = 7.5%

Interest paid back after 5years = ₱ 15,750

Solution:

How much did she borrow.

= let the sum borrowed be P

= P * 4 / 100

= 4P/100

= 1P/25.

For the next two years

= P* 6 * 2/100

= 12P/100

= 3P/25

For the next 3years

= P* 7.5*3/100

= 22.5P/100

= 9P/40.

1P/25 + 3P/25 + 9P/40 = 15750

77P/200 = 15750

P = 15750 * 200 / 77

P = 315,0000/77

P = ₱40,909.1

The amount borrowed is ₱40,909.1

5 0

2 years ago

In 2004, a magazine's circulation was about 1,000,000 readers. In 2014, the magazine had about 2,000,000 readers. Write a linear

professor190 [17]

Answer:

$r(t)=100,000t+600,000$

Step-by-step explanation:

Let

r ----> the number of readers (y-coordinate or dependent variable)

t ----> the number of years after 2000 (x-coordinate or independent variable)

Remember

2004 ----> represent t=4 years

2014 ----> represent t=14 years

we have the ordered pairs

(4,1,000,000) and (14,2,000,000)

step 1

Find the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute the values

$m=\frac{2,000,000-1,000,000}{14-4}$

$m=\frac{1,000,000}{10}$

$m=100,000\frac{readers}{year}$

step 2

Find the equation of the line in point slope form

$r-r1=m(t-t1)$

we have

$m=100,000\\point\ (4,1,000,000)$

substitute

$r-1,000,000=100,000(t-4)$

step 3

Convert to slope intercept form

$r=mt+b$

isolate the variable r

$r-1,000,000=100,000t-400,000\\r=100,000t-400,000+1,000,000\\r=100,000t+600,000$

step 4

Convert to function notation

$r(t)=100,000t+600,000$

6 0

1 year ago