Probability that on randomly selected day have no messages

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A statistics professor receives an average of five e-mail messages per day from students. Assume the number of messages approximates a Poisson distribution.

a. What is the probability that on a randomly selected day she will have no messages?
b. What is the probability that on a randomly selected day she will have five messages?
c. What is the probability that on a randomly selected day she will have two messages?

Reference no: EM13145629

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