a) the tube will last beyond 20 hours b) the tube wil bum out before 15 hours c) the tube wil last beyond 20 hours given that it lasts at least 15 hours

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 32E
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2. Suppose the lifetime X (measured in hours) of an electronic tube has the
folowing CDF: Fx(x) = (1 - 10/x)l 10.(x), Find the probability of the following:
a) the tube will last beyond 20 hours
b) the tube will bum out before 15 hours
c) the tube will last beyond 20 hours given that it lasts at least 15 hours
Transcribed Image Text:2. Suppose the lifetime X (measured in hours) of an electronic tube has the folowing CDF: Fx(x) = (1 - 10/x)l 10.(x), Find the probability of the following: a) the tube will last beyond 20 hours b) the tube will bum out before 15 hours c) the tube will last beyond 20 hours given that it lasts at least 15 hours
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