What would the formula be to calculate the odds be of pulling all four 2's, all four 3's and at least 2 of the 4 4's from a standard 52 card deck. No order is necessary as long as these ten cards are pulled first.
A second question is what is the formula or odds of having any three of the four 8's and any 2 of the 4 7's remaining as the last five cards in a standard deck of cards.
Different possible sought after combinations: get any two 4's out of all four of em, so $\binom {4}{2} $
Different possible combinations: Any set of 10 from 52 cards, so $\binom {52}{10}$
$$P = \frac{\binom {4}{2}}{\binom {52}{10}} = \frac6{\frac{52!}{10!42!}}$$