Pearson Correlation — r = sxy/(sx·sy), computing from summary statistics Previous Year Questions | Prasnya
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Association Between Two Variables - Association Between Two...
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Q1
A company studied the relationship between advertising expenditure (
X
X
) and sales revenue (
Y
Y
) across 12 months. Summary statistics are given. Also, the sum of product of deviations of
X
X
and
Y
Y
from their respective means is 160. Compute the correlation coefficient between advertising expenditure and sales revenue. Enter the answer correct to one decimal place.
Integer answer
OCTOBER 26, 2025
OCTOBER 26, 2025
