Q378
The ratio of the covariance between x and y written as cov (x, y) to the product of the standard deviation of x and y symbolically
A.
B.
Answer
C.
\frac{{\sqrt \sum {{\text{x}}^2}\sum {{\text{y}}^2}}}{{\sum {\text{xy}}}}
D.
None of these
Answer: Option B
Solution
Answer: Option B
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