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 Jorelle is picking the letter tiles with replacement, each letter tile has an equal probability of being picked each time.
There are 5 letter tiles in the box and one of them is the letter A.
Therefore, the probability of picking the letter A on any given pick is 1/5.
Since Jorelle is repeating the procedure 100 times, we can determine how many times the letter A tile will be picked by multiplying the probability of picking the letter A by the total number of picks:
(1/5) * 100 = 20
So, the letter A tile will be picked 20 times out of 100 picks.