14.1-14.2

What does the P stand for in _nP_r?

• Partners
• Positions
• Papers
• Permutations

Picking a President, Vice-President, and Secretary from a group of 12.

• Permutation
• Combination

How would you solve?
From the 20 DVD's you purchased this past year, you plan to take five with you on vacation.  How many different sets of five DVD's can you take?

• Permutation
• Combination
• Factorial
• MPC

How many ways can a club select a president, vice president, and a secretary from a group of 5 people?

• 12
• 60
• 15

What is the value of 5!

• 25
• 15
• 120
• 720

₇P₂

• 0
• 7
• 42
• 210

Sarah plays softball over the summer.  If there are 10 players on the team, how many ways can the coach make a batting order that includes all players?

• 1
• 3628800
• 100
• 1814400

An election ballot asks voters to select three city commissioners from a group of six candidates.  In how many ways can this be done?

• 6!
• 120
• 20
• 3!

The ski club with ten members is to choose three officers for captain, co-captain and secretary.  How many ways can those offices be filled?

• 720
• 120
• 10!

How many ways can you arrange 7 books on a shelf?

• 7

• 49

• 343

• 5,040