In how many ways can you select two people from a group of 20 if the order

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In how many ways can you select two people from a group of 20 if the order of selection is not important?

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Introduction To Probability And Statistics

ISBN: 9781133103752

14th Edition

Authors: William Mendenhall, Robert Beaver, Barbara Beaver

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Question Posted: Apr 15, 2016 06:52 AM

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In how many ways can you select two people from a group of 20 if the order

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Introduction To Probability And Statistics

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