3. The following table shows the probability distribution of a random variable X. X 2 5 8. 10 3 5 7 P(x) 16 16 16 16 (a) Find E(X) and Var(X). (b) Find E(8X + 3) and Var(8X + 3).
3. The following table shows the probability distribution of a random variable X. X 2 5 8. 10 3 5 7 P(x) 16 16 16 16 (a) Find E(X) and Var(X). (b) Find E(8X + 3) and Var(8X + 3).
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question
![3. The following table shows the probability distribution of a random variable X.
X
2
5
8.
10
3
5
7
P(x)
16
16
16
16
(a) Find E(X) and Var(X).
(b) Find E(8X + 3) and Var(8X + 3).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8860e590-efe8-4350-bb0e-ef90976e389f%2F83d0e899-021e-4882-9523-c27a62f1fc43%2Fnp4c4h4_processed.png&w=3840&q=75)
Transcribed Image Text:3. The following table shows the probability distribution of a random variable X.
X
2
5
8.
10
3
5
7
P(x)
16
16
16
16
(a) Find E(X) and Var(X).
(b) Find E(8X + 3) and Var(8X + 3).
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