Are X and Y independent? Read this: Probability-generating function - Wikipedia, the free encyclopedia
Given:
and
What is the pgf of the random variable ?
I've figured out the pmfs as:
Firstly, are the pmfs correct? I feel like I've missed something really obvious but I can't tell...
Secondly, how would I find the pgf of V, as asked above?
Are X and Y independent? Read this: Probability-generating function - Wikipedia, the free encyclopedia