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The discrete random variable X has probability mass function kx x = 2,3 2kx P(X = x) = x-1' x = 4,5 0,otherwise. Find the variance of X.

The discrete random variable X has probability mass function kx x = 2,3 2kx P(X = x) = x-1' x = 4,5 0,otherwise. Find the variance of X.

Calculus For The Life Sciences
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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The discrete random variable X has probability mass function kx x = 2,3 2kx P(X = x) = x = 4,5 x-1' 0,otherwise. Find the variance of X.
Transcribed Image Text:The discrete random variable X has probability mass function kx x = 2,3 2kx P(X = x) = x = 4,5 x-1' 0,otherwise. Find the variance of X.
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