A card is randomly selected from a standard deck of 52 cards. What is the probability that it is a king or a queen?
The probability of picking a king or a queen in a standard deck of 52 cards is 4/52 + 4/52 ? 8/52 or 2/13. This is because there are 4 king cards and 4 queen cards in a standard deck. Learn more about deck cards probability from http://www.ehow.com/how_4748191_probability-problems-involving-deck-cards.html.
8 in 52
find the number of queens in a deck of cards. Then find the number of kings. Add those two numbers together, and put it over 52. Simplify if necessary.