We have the following information about the random variables X and Y: 0.5, дY – 1,o = 1, o = 2.25. Calculate the variance of Z 1X + 7Y, | a) when the coefficient of correlation is p(X, Y) = 0.33: b) when X and Y are independent random variables:
We have the following information about the random variables X and Y: 0.5, дY – 1,o = 1, o = 2.25. Calculate the variance of Z 1X + 7Y, | a) when the coefficient of correlation is p(X, Y) = 0.33: b) when X and Y are independent random variables:
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 24PFA
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![We have the following information about the random variables X and Y:
0.5, дY
– 1,o = 1, o = 2.25.
Calculate the variance of Z
1X + 7Y,
|
a) when the coefficient of correlation is p(X, Y) = 0.33:
b) when X and Y are independent random variables:](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F079fb689-2c03-424e-90c5-a96b31ab692e%2Fea9ea94c-fbf0-4c2b-a50f-2c5462f604f7%2Flos6us.png&w=3840&q=75)
Transcribed Image Text:We have the following information about the random variables X and Y:
0.5, дY
– 1,o = 1, o = 2.25.
Calculate the variance of Z
1X + 7Y,
|
a) when the coefficient of correlation is p(X, Y) = 0.33:
b) when X and Y are independent random variables:
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