On a TI84 Plus Calculator how do I find the probability dist

On a TI-84 Plus Calculator, how do I find the probability distribution of X and graph it for the question three marbles are chosen without replacement from a box containing 5 red, 8 blue, and 10 yellow marbles. Let X be the number of yellow marbles chosen. Find the mean of the random variable X.

Solution

above shows required probabulity,

And the graph is:

mean of the random variable:x₁p₁+x₂p₂+x₃p₃

                                                                    ₌1/10+2/9+3/8

                                               =0.1+0.22+0.33

                                                =0.65.