Let X be a standard normal RV. Suppose Y = 2X+3 and Z = -X+6. a) Find the covariance between Y and Z  b) Find the correlation coefficient between Y and Z

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 32E
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Let X be a standard normal RV. Suppose Y = 2X+3 and Z = -X+6.

a) Find the covariance between Y and Z 

b) Find the correlation coefficient between Y and Z

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