If cov(x,y)=25, Standard deviation of x is 5, Standard deviation of y is 6, then coefficient of correlation r =
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Given : cov(x,y)=25, Standard deviation of x is 5, Standard deviation of y is 6,
To Find : coefficient of correlation r
Solution:
Correlation coefficient = cov (x,y)/ (std deviation (x) ×std deviation (y))
=> r = 25/ (5 * 6)
=> r = 5/6
coefficient of correlation r = 5/6
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