Question

13. A customer service center receives a wide variety of calls for a manufacturer, but 0.09...

13. A customer service center receives a wide variety of calls for a manufacturer, but 0.09 of these calls are warranty claims. Assume that all calls are independent and that the probability of each call being a warranty claim is 0.09. Let X denote the number of warranty claims received in the first 16 calls. Find the expected value of X.

QUESTION 14

  1. Customers arrive at a bank according to a Poisson process having a rate of 2.42 customers per hour. Suppose we begin observing the bank at some point in time.What is the probability that 3 customers arrive in the first 1.8 hours?

15. Customers arrive at a bank according to a Poisson process having a rate of 2.3 customers per hour. Suppose we begin observing the bank at some point in time.

What is the probability that at least 3 customers arrive in the first 1.3 hours?

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