SOLUTION: A bank manager has noticed that the probability distribution for X = number of
persons in line to use the ATM machine when he leaves his office at night is shown below:
.
x 0 1
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Question 1167769: A bank manager has noticed that the probability distribution for X = number of
persons in line to use the ATM machine when he leaves his office at night is shown below:
.
x 0 1 2 3 4
p(x)=P(X = x) .10 .10 .40 .30 .10
What is the mean of X?
Answer by mastersimon(1) (Show Source): You can put this solution on YOUR website!
multiply x by probability and add them.
Answer 2.2
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