6. The pH water samples from a specific lake is a random variable X with probability density function. f(x) = }8 (7 – x)², 5
6. The pH water samples from a specific lake is a random variable X with probability density function. f(x) = }8 (7 – x)², 5
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
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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Transcribed Image Text:6. The pH water samples from a specific lake is a random variable X with probability density
function.
(7 -
f(x) = }8
(7- x)2,
5 <x<7
0,
elsewhere
a. ) Find E(X) ( expected value or mean)
b. ) Find V(X) ( Variance)
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