I am new to this so I apologize if I am doing anything wrong. I am having a hell of a time understanding Discrete Mathematics.

I have a a couple HW questions that I don't understand.

1) What is the probability that a 5 card poker hand has two quens?

Is this simply C(4,2)C(48,3) / C(52,5) ??

2) What is the probability that a 5 card poker hand has at least two aces?