Refer to Exercise 4.6. List all of the outcomes in each of the following events and mention

Question:

Refer to Exercise 4.6. List all of the outcomes in each of the following events and mention which of these are simple and which are compound events.
a. Exactly one customer receives $20 bills.
b. Both customers receive $10 bills.
c. At most one customer receives $20 bills.
d. The first customer receives $10 bills and the second receives $20 bills.