# Question

The number of messages sent to a computer bulletin board is a Poisson random variable with a mean of 5 messages per hour.

(a) What is the probability that 5 messages are received in 1 hour?

(b) What is the probability that 10 messages are received in 1.5 hours?

(c) What is the probability that less than two messages are received in one-half hour?

(a) What is the probability that 5 messages are received in 1 hour?

(b) What is the probability that 10 messages are received in 1.5 hours?

(c) What is the probability that less than two messages are received in one-half hour?

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