5. The probability of winning a certain casino game is 18%. Assume the outcome of each game is independent from the outcomes of the other games. Ms. Delisi will play the game 15 times and record the number of times she wins.

a. Compute and interpret the mean in this situation. Show your work.

b. Compute and interpret the standard deviation in this situation. Show your work.

c. What is the probability that Ms. Delisi wins exactly 4 times? Show your work.

d. What is the probability that Ms. Delisi wins at least 6 times? Show your work.