Directions: Compute the expected value, variance, and standard deviation for random variable X whose probability table is given below: Possible Outcome -1 0 Probability 1 2 1/7 1/7 5/14 5/14 Probability Table for X 1. The Expected Value of X is E(X) 2. The Variance of X is Var(X) = 3. The Standard Deviation of X is Std(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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Directions: Compute the expected value, variance, and standard deviation for random variable X whose
probability table is given below:
Possible Outcome -1 0
1/7 1/7
Probability
Probability Table for X
1. The Expected Value of X is E(X)
2. The Variance of X is Var(X)
3. The Standard Deviation of X is Std(X)
1
2
5/14 5/14
Transcribed Image Text:Directions: Compute the expected value, variance, and standard deviation for random variable X whose probability table is given below: Possible Outcome -1 0 1/7 1/7 Probability Probability Table for X 1. The Expected Value of X is E(X) 2. The Variance of X is Var(X) 3. The Standard Deviation of X is Std(X) 1 2 5/14 5/14
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