During the dry month of August, one Canadian city has measurable rain on average only 2 days

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During the dry month of August, one Canadian city has measurable rain on average only 2 days per month. If the arrival of rainy days is Poisson distributed in this city during the month of August, what is the average number of days that will pass between measurable rain? What is the standard deviation? What is the probability during this month that there will be a period of less than 2 days between rain?

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Business Statistics For Contemporary Decision Making

ISBN: 9781119577621

3rd Canadian Edition

Authors: Ken Black, Ignacio Castillo

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