In this question you are expected to use computer support to find the final answers. That is, you will decide how to answer the question (remember to write that down for us to check) and then finish the calculation by using a computer program such as R or Microsoft Excel. The police commissioner of a city police force wants to know if she should increase the number of police officers patrolling the city’s streets. On average there are 15 violent crimes per day. (a) What is the probability that there are no violent crimes on a given day? (b) The police commissioner decides she will increase the number of police officers on patrol if the probability that 8 or more violent crimes will occur on a given day is greater than 1/3. Will she increase the number of police officers on patrol?

In this question you are expected to use computer support to find the final answers. That is, you will decide how to answer the question (remember to write that down for us to check) and then finish the calculation by using a computer program such as R or Microsoft Excel. The police commissioner of a city police force wants to know if she should increase the number of police officers patrolling the city’s streets. On average there are 15 violent crimes per day. (a) What is the probability that there are no violent crimes on a given day? (b) The police commissioner decides she will increase the number of police officers on patrol if the probability that 8 or more violent crimes will occur on a given day is greater than 1/3. Will she increase the number of police officers on patrol?

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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Question

The police commissioner of a city police force wants to know if she should increase the number of police officers patrolling the city’s streets. On average there are 15 violent crimes per day.

(a) What is the probability that there are no violent crimes on a given day?
(b) The police commissioner decides she will increase the number of police officers on patrol if the probability that 8 or more violent crimes will occur on a given day is greater than 1/3. Will she increase the number of police officers on patrol?

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