Lectures - 1.4 Sets of Outcomes and Trees

Consider the following experiment:
Fred goes to dinner and has to pay the bill, which comes to $7.
He has one $10, one $5, and three $1 bills.
He pulls random bills out of his pocket until he has enough to pay.
How many elements are in the sample space?

• A. 9
• B. 10
• C. 11

Mike goes to subway and gets a sandwich. He can choose between...
5 kinds of bread
4 kinds of cheese
3 kinds of meat
How many different sandwiches does he have to choose from?

• A. 20
• B. 60
• C. 120