Correlation b/w hours spent studying and points earned
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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 Summary
The most likely answer is explained with comments on why the other answers are unlikely.
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Answer:
B. r= 0.70
r cannot be larger than 1 so choice A (i.e., r = 1.20) is eliminated.
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