# Joint distibution problem

1. Apr 14, 2007

Hi,
I would like some help with this problem

If X1 and X2 are two discrete random variables with joint probability distribution given by the following bivariate table.(table attached)

1-Find the conditional probability distribution of X2 given X1
.
thank you

#### Attached Files:

• ###### table probability.doc
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2. Apr 16, 2007

### Tom Mattson

Staff Emeritus
Dontcha want to take a crack at it and show us what you've got?

(By the way, if memory serves you aren't going to have just one conditional probability distribution. Rather, you're going to have one for each value of $x_1$).