Find the probability a five card hand chosen from a standard 52 card deck has at least three spades.

Answer 1

Three spades = 13/52 + 12/51 + 11/50 = ?
Four Spades = 13/52 + 12/51 + 11/50 + 10/49 = ?
Five Spades = 13/52 + 12/51 + 11/50 + 10/49 + 9/48 = ?
Either-or probabilities are found by adding the individual probabilities