Solution Found!
If the range of X is the set {0,1,2,3,4} and P(X ??x) ??0
Chapter 3, Problem 57E(choose chapter or problem)
Problem 57E
If the range of X is the set {0,1,2,3,4} and P(X ◊◊x) ◊◊0 2 . , determine the mean and variance of the random variable.
Questions & Answers
QUESTION:
Problem 57E
If the range of X is the set {0,1,2,3,4} and P(X ◊◊x) ◊◊0 2 . , determine the mean and variance of the random variable.
ANSWER:
Solution:
Step 1 of 2:
Here we have to determine the mean and variance of the random variable.
Given the range of X = {0,1,2,3,4} and P(X= x) = 0.2.
Mean
= 2
Variance =
Where,
Then,
Variance =
= 2