f(x) = (6(x - 1)(2-x) if 1 < x < 2 1⁰ otherwise Determine the mean of the time (E(X)) and square time (E(X2)) it takes for a randomly selected student to finish the aptitude tost

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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f(x) =
6(x-1)(2-x) if 1 < x < 2
otherwise
0
Determine the mean of the time (E(X)) and square time (E(X²)) it takes for a randomly selected student to finish
the aptitude test.
Transcribed Image Text:f(x) = 6(x-1)(2-x) if 1 < x < 2 otherwise 0 Determine the mean of the time (E(X)) and square time (E(X²)) it takes for a randomly selected student to finish the aptitude test.
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f(x)=6(x-1)(2-x); 1<x<2 

 

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