6. Suppose that X is an Exponential with rate 1 and that, given X = x, Y is an Exponential with rate x. Hence Y is an Exponential with a random rate. Show that P(Y > 1) = 1/2.

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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6. Suppose that X is an Exponential with rate 1 and that, given X = x, Y is an
Exponential with rate x. Hence Y is an Exponential with a random rate. Show
that P(Y > 1) = 1/2.
Transcribed Image Text:6. Suppose that X is an Exponential with rate 1 and that, given X = x, Y is an Exponential with rate x. Hence Y is an Exponential with a random rate. Show that P(Y > 1) = 1/2.
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