Jesse randomly selects a letter from the word TRIAL. The probability of selecting the letter T each time is 15

Question

or 20%. If the experiment is repeated 140 times, how many times will Jesse expect to select a T?

Answer 1

Expected number of times Jesse will select the letter T = Probability of selecting T * Number of times the experiment is repeated
Expected number of times Jesse will select T = 0.20 * 140
Expected number of times Jesse will select T = 28

Therefore, Jesse can expect to select the letter T 28 times out of 140 experiments.