SOLUTION: A business has several telephone lines. Incoming calls have a Poisson distribution. They come in at the rate of 1 every 75 minutes during daytime hours. What is the probability, ov
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Question 473883: A business has several telephone lines. Incoming calls have a Poisson distribution. They come in at the rate of 1 every 75 minutes during daytime hours. What is the probability, over the course of four daytime hours that the business receives:
(a) no calls
(b) exactly four calls
(c) exactly three calls: Show the Poisson formula and the substitution
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(d) at most five calls
(e) at least three calls
(f) between 3 and 7 calls, inclusive Answer by robertb(5830) (Show Source):
You can put this solution on YOUR website! I will answer only the first three. I know you'll get the idea for the remaining ones...
(a)
(b)
(c)
