If z = ax + by and r is the correlation co-efficientbetween x and y, show thato? = ao² + bơ,² + 2abr 0,0,

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Answered: If z = ax + by and r is the correlation…

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015

1st Edition

ISBN:9781680331141

Author:HOUGHTON MIFFLIN HARCOURT

Publisher:HOUGHTON MIFFLIN HARCOURT

Chapter11: Data Analysis And Displays

Section: Chapter Questions

Problem 6CT

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The joint pmf of X and Y is f(x, y) = 1/6, 0 ≤ x+y ≤ 2, where x and y are nonnegative integers. Compute Cov(X, Y) and determine the correlation coefficient.
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If cov (x,y) = 0 is zero, then is ______ correlation. Select one: a. positive b. negative c. zero d. none of these Clear my choice
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If z = ax + by and r is the correlation co-efficient between x and y, show that o? = ao? + bo,² + 2abr 0,0,