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21-11-2017
Mathematics

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A container contains 10 diesel engines. the company chooses 5 engines at random, and will not ship the container if any of the engines chosen are defective. find the probability that a container will be shipped even though it contains 2 defectives if the sample size is 55.

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30-11-2017

numbwe of ways to succeed = 13C7 number of random sets of 7 = 15C7 Ans: 13C7/15C7 = 0.2667

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