Phone calls arrive at the rate of 72 per hour at the reservation desk for Regional Airways. (Round your answers to four decimal places.) (a) Compute the probability of receiving three calls in a 5-minute interval of time. (b) Compute the probability of receiving exactly 10 calls in 15 minutes. (c) Suppose no calls are currently on hold. If the agent takes 5 minutes to complete the current call, how many callers do you expect to be waiting by that time? What is the probability that none will be waiting? (d) If no calls are currently being processed, what is the probability that the agent can take 3 minutes for personal time without being interrupted by a call?

Phone calls arrive at the rate of 72 per hour at the reservation desk for Regional Airways. (Round your answers to four decimal places.) (a) Compute the probability of receiving three calls in a 5-minute interval of time. (b) Compute the probability of receiving exactly 10 calls in 15 minutes. (c) Suppose no calls are currently on hold. If the agent takes 5 minutes to complete the current call, how many callers do you expect to be waiting by that time? What is the probability that none will be waiting? (d) If no calls are currently being processed, what is the probability that the agent can take 3 minutes for personal time without being interrupted by a call?

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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Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

ou may need to use the appropriate appendix table or technology to answer this question.

Phone calls arrive at the rate of 72 per hour at the reservation desk for Regional Airways. (Round your answers to four decimal places.)

(a)

Compute the probability of receiving three calls in a 5-minute interval of time.

(b)

Compute the probability of receiving exactly 10 calls in 15 minutes.

(c)

Suppose no calls are currently on hold. If the agent takes 5 minutes to complete the current call, how many callers do you expect to be waiting by that time?

What is the probability that none will be waiting?

(d)

If no calls are currently being processed, what is the probability that the agent can take 3 minutes for personal time without being interrupted by a call?

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