Lucy has a deck of 52 cards with 4 suits (hearts, spades, diamonds, and clubs), and each suit has cards numbered 1–13. What is the theoretical probability of her picking a 4 from the deck of cards? The answer should be a fraction. Remember to simplify.(1 point)

There are four 4's in a standard deck of 52 cards (one from each suit).

So the probability of Lucy picking a 4 from the deck of cards is:

4/52 = 1/13

Therefore, the theoretical probability is 1/13.