anonymous123: three cards are drawn from an ordinary deck of 52 cards. Each card is replaced in the deck before the next card is drawn. What is the probability that at least one of the cards will be a spade
Well for starters, the probablilty that at least one is spade is (1 - probability that none are a spade)
so the real question is what is the probablility that none are spades.
What is the probability that the first one is not a spade? What do you do next?
Think about it and get back to me.
+118654 
