The time between arrivals of large comets on earth is exponentially distributed with a mean of one

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The time between arrivals of large comets on earth is exponentially distributed with a mean of one year.

A. What is the shorterst periof of time during which you have at least 90% probability of seeing a comet?

B. What is the probability that at least three comets arrive during the two- year period 2015-2016 ?

Related Book For answer-question

Essentials of Business Statistics Communicating With Numbers

ISBN: 978-0078020544

1st edition

Authors: Sanjiv Jaggia, Alison Kelly

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Posted Date: Apr 20, 2020 06:28 AM

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The time between arrivals of large comets on earth is exponentially distributed with a mean of one

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Essentials of Business Statistics Communicating With Numbers

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