Question #3971
Find the probability of drawing a spade or a face card from a standard deck of cards.
Expert's answer
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.
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.
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