if four cards are drawn from a deck of cards without replacement ,what is the probability that least one of the cards is a spade
Let the deck consist of 52 cards (13 of each suit). Find the probability that none of the four drawn cards is a spade: (39/52)*(38/51)*(37/50)*(36/49) = 0.3038...
The probability that at least one of the four cards is a spade equals 1 - 0.3038 = 0.6962.
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