A random variable X has the density function: fx (x) = { 3 (3-x) 1
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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![A random variable X has the density function:
fx (x) = { 3
%3D
(3-x) 1<xr<3
10
otherwise
If the mean of X is equal to
13
then the variance of X is:
10'
18/35
O 13/100
None of the other options
7/20](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1783294e-d698-4943-a082-0b9d6cee4078%2F5266dd39-0092-4457-8d21-ff6e33959824%2Fj7xjsln_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A random variable X has the density function:
fx (x) = { 3
%3D
(3-x) 1<xr<3
10
otherwise
If the mean of X is equal to
13
then the variance of X is:
10'
18/35
O 13/100
None of the other options
7/20
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