The total number of hours, in units of 100 hours,that a family runs a vacuum cleaner over a period ofone year is a random variable X having the densityfunction shown to the right. Find the variance of X(x-8).f(x)2-(X-8). 9sx< 10,8

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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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The total number of hours, in units of 100 hours, that a family runs a vacuum cleaner over a period of one year is a random variable X having the density function shown to the right. Find the variance of X (x- 8). 8