Answer:
911
Step-by-step explanation:
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Answer:
C. 120 students
Step-by-step explanation:
10 + 15 + 20 +30 = 75%
100 - 75 = 25%
25% chose football which is 100 students
30% chose swimming
setup proportion:
25/100 = 30/x
25x = 100(30)
25x = 3000
x = 120
You need to add a picture of the graph
Circumference of a circle = pi x diameter
pi = 3.14
diameter = radius x 2
diameter = 10 x 2
diameter = 20
Circumference = 3.14 x 20
Circumference = 62.8 ft
The correlation coefficient measures the relationship between the two variables
The correlation coefficient is 0.234
<h3>How to determine the correlation coefficient</h3>
The formula of correlation coefficient is:

Using the dataset from the complete question, we have:

Evaluate the difference

Evaluate the quotient

Approximate

Hence, the correlation coefficient is 0.234
Read more about correlation coefficient at:
brainly.com/question/4219149