A customer service can receive the customer feedbacks via emails or phone calls. It is assumed that in anhour the number of calls to the service hot line is a Poisson random variable (X) with the mean 27(call/hour) and the number of emails is a Poisson random variable (Y) with the mean 50 (email/hour).1. Find the probability that this customer service received 25 calls in an hour.Answer: 0.07372. Find the average calls this customer service received in 10 minutes.Answer: 4.50003. Supposed that the number of emails and the number of calls to this customer service areindependent random variables. Find the probability that this service channel received 7 feedbacks(emails or calls) in 9 minutesAnswer: 0.0901X 0.052425440366783

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Answered: 1. Find the probability that this…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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