Question

Correlation Coefficients. Image attached for the problem.

A. 11
B. 9
C. 3
D. 5

Answer 1

A

Explanation:

y bar basically means the average of the y-values.

To get the average, we add up all the y-values in the table and divide by the total number of values (here we have 5 values). Hence,

y bar =
`(5+7+10+15+18)/(5)=11`

correct answer is A