In two sets of variables X and Y with 50 observations each, the following data were
observed : Mean of X = 10, S.D. of X = 3 ; : Mean of Y = 6, S.D. of Y = 2.
Coefficient of correlation between X and Y is 0.3. However, on subsequent verification
it was found that one pair (X = 10, Y = 6) was inaccurate and hence weeded out. With
the remaining 49 pairs of values, how the original value of correlation coefficient
affected?
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