Question No 13:
For a set of six pairs of observations for the variables X (number of employees in hundreds) and Y
(product sales in thousands of units), the following results were obtained:
ΣX = 1 ΣY = 15 ΣX2 = 15 ΣY2 = 65 ΣXY = 7
The correlation coefficient is nearest to
A. 0·22
B. 0·47
C. 0·90
D. - 0·32
Answer: A
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