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

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 31E
icon
Related questions
Question

Please help me with this one. Thank you tutor!

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)
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)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Recommended textbooks for you
Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage