Suppose that the PDF for the number of years it takes to earn a Ba degree is given in the following table X P(x) 0 0.10 1 0.25 2 0.2 3 0.3 4 0.15 1- Find the Expected value and the Standard Deviation of the Random Variable X 2- If Y=7-3X, Find the mean of Y and the Variance of Y
Suppose that the PDF for the number of years it takes to earn a Ba degree is given in the following table X P(x) 0 0.10 1 0.25 2 0.2 3 0.3 4 0.15 1- Find the Expected value and the Standard Deviation of the Random Variable X 2- If Y=7-3X, Find the mean of Y and the Variance of Y
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:Suppose that the PDF for the number of years it takes to earn a Bachelor of Science (B.S.)
degree is given in the following table
X
P(x)
0
0.10
1
0.25
2
0.2
3
0.3
0.15
1- Find the Expected value and the Standard Deviation of the Random Variable X.
2- If Y=7-3X, Find the mean of Y and the Variance of Y
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