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Numerator of the covariance

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Reference no: EM131864678

Suppose you change the data in Problem 3a so that the bottom case is X = 1 and Y = 12 rather than

X = 1 and Y = 2.

(a) Without doing any calculations, state how (and why) this change would affect the numerator of the covariance and, in turn, the covariance itself.

(b) In general, how would this change affect r?

(c) Estimate the new r

Reference no: EM131864678

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