Re: stat. Question problem



On Aug 30, 10:27 pm, mathking <elkawa8...@xxxxxxxxx> wrote:
Two fair dice are thrown. Let the random variable X be the smaller
of the two scores if the scores are different, or the score on one
of the dice if the scores are the same.
(i) Copy and complete the following table to show the probability
distribution of X.

x 1 2 3 4 5 6
P(X = x)

(ii) Find E(X)

hi..could you guys please guild me how to solve this kind of
question please! thx!

First make up the 6 by 6 table giving the joint probabilities that
the first die comes up x1 and the second second die comes up x2.
What assumption must you make in order to generate the table?
Then how do you get P(x) from the table?
.