SOLUTION: a card is randomly selected from a standard deck. find the probability that the card is red or a queen

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Question 267178: a card is randomly selected from a standard deck. find the probability that the card is red or a queen
Answer by Edwin McCravy(20056) About Me  (Show Source):
You can put this solution on YOUR website!
a card is randomly selected from a standard deck. find the probability that the card is red or a queen

P(Red OR Queen) = P(Red) + P(Queen) - P(Red AND Queen)

P(Red) = 26%2F52, there are 26 red cards out of 52 cards

P(Queen) = 4%2F52, there are four queens out of 52 cards

P(Red AND Queen) = 2%2F52, there are two red queens, the 
queen of hearts and the queen of diamonds, out of 52 cards.

P(Red OR Queen) = P(Red) + P(Queen) - P(Red AND Queen)

P(Red OR Queen) = 26%2F52%2B4%2F52-2%2F52

P(Red OR Queen) = 28%2F52

P(Red OR Queen) = 7%2F13

Edwin