Answer (Choose 1 answer)
(See picture)
A. 175.5
Β. 118.5
C. None of the other choices is correct
D. 125.5
Ε. 135.5
Given below are the rating and performance scores of 6 laptop computers.
Performance Score
115
74
191
78
153
194
79 80
236
84
184
76
Overall Rating
What is the sample covariance between the performance scores and the rating?
8
