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Get Full Access to Statistics For Engineers And Scientists - 4 Edition - Chapter 4.4 - Problem 1e
Get Full Access to Statistics For Engineers And Scientists - 4 Edition - Chapter 4.4 - Problem 1e

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# Twenty air-conditioning units have been brought in for

ISBN: 9780073401331 38

## Solution for problem 1E Chapter 4.4

Statistics for Engineers and Scientists | 4th Edition

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Problem 1E Problem 1E

Twenty air-conditioning units have been brought in for service. Twelve of them have broken compressors, and eight have broken fans. Seven units are chosen at random to be worked on. What is the probability that three of them have broken fans?

Step-by-Step Solution:

Step 1 of 2 :

Given,

We have, the number of air-conditioning units have been brought in for service = 20

The number of  broken compressors = 12

The number of broken fans = 8

The number of units are chosen at random to be worked on = 7

The claim is to find the probability that three of them have broken fans.

Step 2 of 2

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