SOLUTION: what is the probability of drawing a king or black card from a deck of cards ?

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Question 200287: what is the probability of drawing a king or black card from a deck of cards ?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
P(King or Black) = P(King) + P(black)

P(King or Black) = (number of kings)/(total cards) + (number of black cards)/(total cards)


P(King or Black) = 4/52 + 26/52


Note: there are 4 kings (one of each suit) and 26 black cards (13 spades and 13 clubs). Also, there are a total of 52 cards in a deck.


P(King or Black) = (4+26)/52


P(King or Black) = 30/52


P(King or Black) = 15/26


So the probability is 15/26 which in decimal form is 0.5769 (which is 57.69%)