PROBLEM 4E

Let X and Y have a trinomial distribution with parameters n = 3, pX = 1/6, and pY = 1/2. Find

Note that in this case. (Indeed, the formula holds in general for the trinomial distribution; see Example 4.3-3.)

References see Example 4.3-3.

Answer

Step 1 of 7

Here the distribution is trinomial distribution with parameters n=3, Px=,Py=

The pmf of trinomial distribution is

(