A jar contains four coins: a nickel, a dime, a quarter, and a half-dollar. Three coins are

Question:

A jar contains four coins: a nickel, a dime, a quarter, and a half-dollar. Three coins are randomly selected from the jar.
a. List the simple events in S.
b. What is the probability that the selection will contain the half-dollar?
c. What is the probability that the total amount drawn will equal 60¢ or more?