Question
Three cards are chosen at random from a standard 52-card deck. What is the probability that they are not all the same color?
Answers
scott
3 card combinations ... 52C3
black 3 card combinations ... 26C3
red 3 card combinations ... 26C3
probability not same color = 1 - (probability of same color) = 1 - [(2 * 26C3) / 52C3]
black 3 card combinations ... 26C3
red 3 card combinations ... 26C3
probability not same color = 1 - (probability of same color) = 1 - [(2 * 26C3) / 52C3]