a) A player will win if he rolls two dies and gets a sum equal to 6. If he plays 12 times, what is the probability that he gets at least 2 wins? b) Suppose that the number of customers that enter a bank in an hour is a Poisson random variable, and suppose that P(X =0) = 0.02. i. What is the probability that at most one person enter the bank in one hour? ii. Determine the mean and

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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a)
A player will win if he rolls two dies and gets a
sum equal to 6. If he plays 12 times, what is the
probability that he gets at least 2 wins?
b)
Suppose that the number of customers that
enter a bank in an hour is a Poisson random
variable, and suppose that P(X =0) = 0.02.
i.
What is the probability that
at most one person enter the bank in one hour?
ii.
Determine the mean and
standard deviation of X.
Transcribed Image Text:a) A player will win if he rolls two dies and gets a sum equal to 6. If he plays 12 times, what is the probability that he gets at least 2 wins? b) Suppose that the number of customers that enter a bank in an hour is a Poisson random variable, and suppose that P(X =0) = 0.02. i. What is the probability that at most one person enter the bank in one hour? ii. Determine the mean and standard deviation of X.
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