A card is drawn from a standard deck of 52 cards. What is the probability this card will be a king or an ace?
A. about 3.9%
B. about 7.7%
C. about 15.4%
D. about 50%
100 (8/52) = ?
To calculate the probability of drawing a king or an ace from a standard deck of 52 cards, we need to find the number of favorable outcomes (the number of kings or aces) and divide it by the total number of possible outcomes (the total number of cards in the deck).
There are 4 kings and 4 aces in a standard deck of 52 cards, so the number of favorable outcomes is 4 + 4 = 8.
The total number of possible outcomes is 52 since there are 52 cards in the deck.
Now, we can calculate the probability:
P(king or ace) = favorable outcomes / total possible outcomes
= 8 / 52
≈ 0.154
Therefore, the probability of drawing a king or an ace from a standard deck of 52 cards is approximately 15.4%.
So the correct answer is option C: about 15.4%.