Answer:
Assuming you are referring to a standard deck of playing cards, there are four suits: hearts, diamonds, clubs, and spades. Each suit has 13 cards, for a total of 52 cards in the deck. Since each card has one and only one suit, the probability of drawing a heart, diamond, club, or spade is:
P(heart or diamond or club or spade) = P(heart) + P(diamond) + P(club) + P(spade)
P(heart or diamond or club or spade) = 13/52 + 13/52 + 13/52 + 13/52
P(heart or diamond or club or spade) = 52/52
P(heart or diamond or club or spade) = 1
So the probability of drawing a card that is a heart, diamond, club, or spade is 1 or 100%.