Suppose that the random variable X has the probability density function c(1– x2) for - 1s x <1 f(x) elsewhere What is the variance of X A) 1/3 B) 1/5 c) 1/2 1/4

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 20E
icon
Related questions
Question
Suppose that the random variable X has the probability density function
c(1-
- x2)
for - 1< x <1
f(x) = {
elsewhere
What is the variance of X
A
1/3
1/5
c) 1/2
1/4
Transcribed Image Text:Suppose that the random variable X has the probability density function c(1- - x2) for - 1< x <1 f(x) = { elsewhere What is the variance of X A 1/3 1/5 c) 1/2 1/4
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

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