Q4/ The number of messages sent to a computer bulletin board is a Poissor 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 hour? | Engineering Statistics (c) What is the probability that less than two messages are received in one-hal hour?

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A: Given Information: Mean μ=7.1 Standard deviation σ=1.4

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A: P(A | B) = P(A ∩ B)P(B)

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A: X~N( μ , ?)μ=0     , ?=1Z-score =( x - μ )/?

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