# Conditional Expectation Function

Not what you're looking for? Search our solutions OR ask your own Custom question.

P(x1,x2)= (x1 choose x2) (1/2)^x1 (x1/15), x2= 0,1,2, ...., x1

x1= 1, 2, 3, 4 ,5

0 elsewhere

is the joint pmf of X1 and X2.

Determine E(X2|x1)

Â© BrainMass Inc. brainmass.com March 4, 2021, 6:25 pm ad1c9bdddfhttps://brainmass.com/statistics/statistical-theory/conditional-expectation-function-43959

#### Solution Preview

The answer is x1/2

(See Attachment)

p(x1,x2)= (x1 choose x2) (1/2)^x1 (x1/15), x2= 0,1,2, ...., x1

...

#### Solution Summary

The conditional expectation functions are determined.

$2.49