2- Let X be a random variable with the following probability density function: 4e-4x lo x >0 f(x) = {0 elsewhere Find a) E(2X+5). b) Var(X)
2- Let X be a random variable with the following probability density function: 4e-4x lo x >0 f(x) = {0 elsewhere Find a) E(2X+5). b) Var(X)
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:2- Let X be a random variable with the following probability
density function:
S4e
x>0
f(x) =
elsewhere
Find
a) E(2X+5).
b) Var(X)
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