10. There are 4 suits (heart, diamond, clover, and spade) in a 52-card
10. There are 4 suits (heart, diamond, clover, and spade) in a 52-card
deck, and each suit has 13 cards. Suppose your experiment is to draw one card from a deck and observe what suit it is.
Express the probability in fraction format. (Show all work. Just the answer, without supporting work, will receive no credit.)
(a) Find the probability of drawing a heart or diamond.
(b) Find the probability that the card is not a spade.