The letter tiles C, A, R, E, S are placed in a box.

Question

The letter tiles C, A, R, E, S are placed in a box.

Without looking, Jorelle picks a letter tile from the box and records the result before placing it back. If he repeats the procedure 100 times, how many times will the letter A tile be picked?

Answer 1

Since the letter tiles are replaced after each pick, the probability of picking the letter A tile each time is 1/5. Therefore, out of 100 picks, the letter A tile is expected to be picked 100 * 1/5 = 20 times.