From a standard​ 52-card deck, how many 6​-card hands consist entirely of black cards?

Question

From a standard​ 52-card deck, how many 66​-card hands consist entirely of black cards?

Answer 1

The number of 6 card hands which are all black means picking 6 cards from 26 = $\left(\genfrac{}{}{0ex}{}{26}{6}\right)$

The probability of such a hand is the above number divided by $\left(\genfrac{}{}{0ex}{}{52}{6}\right)$