What is the variance of X

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 9PPS
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Question
Suppose that therandom variable X has the probability density function
c(1– x2)
for -1s x <1
f(x)
elsewhere
What is the variance of X
Transcribed Image Text:Suppose that therandom variable X has the probability density function c(1– x2) for -1s x <1 f(x) elsewhere What is the variance of X
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