Question

If you randomly select a card from a well-shuffled standard deck of 52 cards, the probability that the card you select is a 5 is

Answer 1

There are 52 cards in a standard deck of cards and there are 4 fives among them - 5 of diamonds, 5 of hearts, 5 of spades and 5 of clubs, so the sought probability

$$P=\cfrac{4}{52}=\cfrac{1}{13}.$$