Probability of event after x hours is 0.74e-0.5x + 0.25e-0.25x Find mean, variance and quartiles of waiting times

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
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Probability of event after x hours is 0.74e-0.5x + 0.25e-0.25x

Find mean, variance and quartiles of waiting times

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