In a standard 52 card deck, there are 4 suits: hearts, diamonds, clubs, and spades. Each suit contains 13 cards. When you draw one card from the deck, the total number of possible outcomes is 52, which is the total number of cards in the deck.
Now, if we want to find the probability of drawing a heart, we look at how many favorable outcomes there are for this event. Since there are 13 hearts in the deck, the number of favorable outcomes is 13.
The probability can be calculated using the formula:
Probability (P) = (Number of favorable outcomes) / (Total number of possible outcomes)
So, for this case:
P(drawing a heart) = 13 / 52 = 1 / 4
This means that the probability of drawing a heart from a standard 52 card deck is 1/4 or 25%.