Let X and Y be random variables with means 1 , 2 ; variances
Question:
Let X and Y be random variables with means μ1, μ2; variances σ21, σ22; and correlation coefficient ρ. Show that the correlation coefficient of W = aX+b, a > 0, and Z = cY + d, c > 0, is ρ.
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First we use the definition of correlation coefficient The function X12 Y12 can be ...View the full answer
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Related Book For 
Introduction To Mathematical Statistics
ISBN: 9780321794710
7th Edition
Authors: Robert V., Joseph W. McKean, Allen T. Craig
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