Practice Problem: What is the conditional density function


Let (X,Y) be a 2D random variable that is uniformly distributed in the rectangle [1,3]x[5,10].

Find the conditional probability density function

$ f_{X|Y}(x|7). $


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Answer 1

Hint:

$ f_{XY}(x,y)=\frac{1}{Area \, of \, the \, rectangle} $
$ f_{X|Y}(x|y) = \frac{f_{XY}(x,y)}{f_{Y}(y)}. $
$ f_{Y}(y)= \int_{-\infty}^{\infty} f_{XY}(x,y)dx. $

Answer 2

Write it here.

Answer 3

Write it here.


Back to ECE302 Spring 2013 Prof. Boutin

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Alumni Liaison

Prof. Math. Ohio State and Associate Dean
Outstanding Alumnus Purdue Math 2008

Jeff McNeal