Questions from Statistics Principles

Q: How many user names are possible in Problem 41 if the last

How many user names are possible in Problem 41 if the last character must be a digit?

Q: A combination lock has 50 numbers on it. To open it

A combination lock has 50 numbers on it. To open it, you turn counterclockwise to a number, then rotate clockwise to a second number, and then counterclockwise to the third number. Repetitions are all...

Q: How many different license plate numbers can be made by using one

How many different license plate numbers can be made by using one letter followed by five digits selected from the digits 0 through 9?

Q: Suppose 40 cars start at the Indianapolis 500. In how many

Suppose 40 cars start at the Indianapolis 500. In how many ways can the top 3 cars finish the race?

Q: In how many ways can the top 2 horses finish in a

In how many ways can the top 2 horses finish in a 10-horse race?

Q: Four members from a 20-person committee are to be selected

Four members from a 20-person committee are to be selected randomly to serve as chairperson, vice-chairperson, secretary, and treasurer. The first person selected is the chairperson; the second, the v...

Q: Four members from a 50-person committee are to be selected

Four members from a 50-person committee are to be selected randomly to serve as chairperson, vice-chairperson, secretary, and treasurer. The first person selected is the chairperson; the second, the v...

Q: A lottery exists where balls numbered 1–25 are placed in

A lottery exists where balls numbered 1–25 are placed in an urn. To win, you must match the four balls chosen in the correct order. How many possible outcomes are there for this game?

Q: In the U.S. Senate, there are 21 members

In the U.S. Senate, there are 21 members on the Committee on Banking, Housing, and Urban Affairs. Nine of these 21 members are selected to be on the Subcommittee on Economic Policy. How many differ...

Q: To complete the Citizenship in the World merit badge, one must

To complete the Citizenship in the World merit badge, one must select two of the following seven organizations and describe their role in the world. Source: Boy Scouts of America 1. The United Nations...