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On average, you receive 3 junk e-mails every 6 hours. Assume that the number of pieces of junk mail you receive each day follows the

On average, you receive 3 junk e-mails every 6 hours. Assume that the number of pieces of junk mail you receive each day follows the Poisson distribution.

a.What is the expected number of junk e-mails in one day?

b.What is the probability of receiving exactly two junk e-mails in a six-hours interval?

c.What is the probability of receiving less than two junk e-mails arrive in a six-hours interval?

d.What is the probability of receiving two or more junk email in a six-hours interval?

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