In LOTTO 49, Michigan's lottery game, a player selects 6 integers out of the 49 positive integers. The state randomly selects 6 out of the first 49 integers. Cash prizes are given to a player who matches 4, 5 , or 6 integers. Let X equal the number of integers selected by a player that matches integers selected by the state.

Need help stating the p.m.f.

Don't know why but I just don't undertstand how to do this.