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???
Since each tile has an equal probability of being picked each time, the probability of picking the letter A tile on any given pick is 1/5.
Therefore, if Jorelle repeats the procedure 100 times, he can expect to pick the letter A tile approximately 100 * (1/5) = 20 times.
So, Jorelle will pick the letter A tile approximately 20 times out of the 100 picks.