Question is pretty self explanatory, I'm just not sure if I'm right. My brain isn't functioning and I want to sleep.
Heres the full question in a tiny bit more detail;
Suppose you took 18 cards at random from a 54-card deck with both jokers included and without replacement. (You could also think of it as taking 18 cards at once randomly) What is the chance you get 4 of the same card? e.g. 4 twos, 4 kings, whatever.
Edit: After reading some comments, the suggested question is not what I want. About the jokers, if you are to draw a joker in your 18 cards there is no way it would count to 4 of the same card because there are only 2 jokers. 4 of one card is not 4 of the same suite, its 4 of the same rank. As mentioned earlier, an example would be 4 queens. I am also asking for the probability you get at least one set of 4 of a rank. So if you get 4 queens and 4 kings, the 2nd set of 4 would be a bonus. Hopefully this clarifies!