# Correlation b/w hours spent studying and points earned

Select the most likely answer for the coefficient of linear correlation for the following two variables: x = the number of hours spent studying for a test, and y = the number of points earned on the test.

A. r = 1.20

B. r = 0.70

C. r = -0.85

D. r = 0.05

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#### Solution Preview

Answer:

B. r= 0.70

r cannot be larger than 1 so choice A (i.e., r = 1.20) is eliminated.

Also you would ...

#### Solution Summary

The most likely answer is explained with comments on why the other answers are unlikely.

$2.19