In a study of the factors that affect success in economics, data were collected for 8 business students. Scores on a calculus placement test are given with economics final exam scores. The data are below: It can be shown that for these data:
= 17.75,
= 70.38,
= 237.50,
= 545.875,
(
−
) = 140.75.
Calculate the sample covariance.
A) 140.75
B) 77.98
C) 33.93
D) 20.11
E) 17.59
Correct Answer:
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