Example 17.2 The deviation of the size of an item from the midpoint of the tolerance field of width 2d equals the sum of two random variables X and Y with probability densities and f(x) p(y): 1 exp x² {-2003) 20² exp {-23). 0,√2T Determine the (conditional) probability density of the random variable X for the nondefective items if the distribution p(y) does not depend on the value assumed by X.

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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Example 17.2 The deviation of the size of an item from the midpoint of
the tolerance field of width 2d equals the sum of two random variables X and Y
with probability densities
and
f(x)
❤(y)
=
=
1
0x V/Z #7 CXP { - 12/0
exp
x²
20²
√2TT
√/2= exp{-2013) ·
20²
Determine the (conditional) probability density of the random variable X
for the nondefective items if the distribution p(y) does not depend on the value
assumed by X.
Transcribed Image Text:Example 17.2 The deviation of the size of an item from the midpoint of the tolerance field of width 2d equals the sum of two random variables X and Y with probability densities and f(x) ❤(y) = = 1 0x V/Z #7 CXP { - 12/0 exp x² 20² √2TT √/2= exp{-2013) · 20² Determine the (conditional) probability density of the random variable X for the nondefective items if the distribution p(y) does not depend on the value assumed by X.
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