The proportion of people who respond to a certain mail-order solicitation is a random variable X having the following density function. 2(x+2) 5 0

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
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The proportion of people who respond to a certain mail-order solicitation is a random variable X having the following density function.
2(x+2)
5
0<x< 1,
f(x) =
0,
elsewhere
Find the variance of X.
Calculate the variance, o².
The variance is (Type an integer or a simplified fraction.)
Transcribed Image Text:The proportion of people who respond to a certain mail-order solicitation is a random variable X having the following density function. 2(x+2) 5 0<x< 1, f(x) = 0, elsewhere Find the variance of X. Calculate the variance, o². The variance is (Type an integer or a simplified fraction.)
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