Answer to Question #3971 in Algebra for Zaydee

Question

Find the probability of drawing a spade or a face card from a standard deck of cards.

Answer 1

The the probability of drawing a spade is 13/52
The the probability of drawing a face is (3 in each of 4 suits) 12/52 , but there are spades too.
Thus the probability of drawing a spade or a face card from a standard deck of cards is
13/52 + 12/52 - 3/52 = 22/52.