Permutation and Combination

5! = ?

• 5 x 4 x 3 x 2 x 1 = 120

• 5 x 4 x 3 x 2 x 1 = 60

• 5 + 4 + 3 + 2 + 1 = 15

• 5 + 4 + 3 + 2 + 1 = 5

P(10,2) =

• 90

• 45

• 12

• 20

P(7, 3) =

• 21

• 210

• 35

• 10

Combination or Permutation?

How many different teams of 3 players can be chosen from 21 people?

• Combination

• Permutation

Combination or Permutation?

You're drawing 10 raffle tickets. The first ticket is worth $100 dollars, the second ticket is worth $50 dollars and the third is worth $10 dollars. How many different ways can you draw the raffle tickets?

• Combination

• Permutation

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

• Permutation

• Combination

Picking a team of three people out of a group of 10.

• Permutation

• Combination

C(5, 2) =

• 20

• 10

• 120

• 60

• 24

• 6720

• 336

• 56

What is the value of 8!

• 40320
• 36
• 362880
• 5040