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
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
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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![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](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb01ce052-992c-46e9-93de-f6bf050a758d%2F6af00c76-1e1a-4f0a-8e2e-513351344aa7%2F81loe8n_processed.png&w=3840&q=75)
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
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