It is known that 30% of all calls coming into a telephone exchange are long-distance calls. If

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It is known that 30% of all calls coming into a telephone exchange are long-distance calls. If 200 calls come into the exchange, what is the probability that at least 50 will be long-distance calls?

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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 07:06 AM

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It is known that 30% of all calls coming into a telephone exchange are long-distance calls. If

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Define x number of incoming calls that are long distance p Pincoming call is long ...View the full answer

Introduction To Probability And Statistics

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