Question

7:08 courses.yorkvilleu.ca 4 of 4 YORKVILLE 7. Customers arrive at the drive-through ane of a fast food restaurant at a rate of one every 3 minutes. Use the Poisson probability distribution to answer the following questions: (8 points) a. What is the expected number of calls in one hour? b. What is the probability that exactly two customers arriving at the drive through lane in a nine-minutes interval? c. What is the probability that less than two customers arrive at the drive through lane in a nine-minutes interval? d. What is the probability that two or more customers arrive at the drive through lane in a nine-minutes interval?

Answer 1

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nscuen: Given Foornola Ρ&-0-6 Expected numben af call in one how 20 b) PCGacty two) PC-e) mean numben of alls in qmnutes ( =9-3 3 *3 Pa-2) 2240 21 c PCX2) mean numben of calls in 9 minue ()x3 PCx<2)2PCK-o) +P-1) 3 e *3 t -3 POK2) 0.1991 mean numben of calla in amnule ()9-3 PCX2) 1-PX2) 1-0199/ PCX>9) O.8009

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