CountingPrinciple and Permutation Part 1

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

• 12
• 60
• 15

How many ways can you listen to 3 songs from a CD that has 12 selections?

• 1320
• 33
• 36

What is the value of 5!

• 25
• 15
• 120
• 720

What does the P stand for in _nP_r?

• Partners
• Positions
• Papers
• Permutations

P(4,2)

(a)  

P(15, 4)

(a)  

What does ₁₀P₅ mean?

• Permutations with 5 choices and 10 positions
• Permutations with 10 choices and 5 positions
• Permutations with 5 numbers and 10 operations
• Permutations with 5 hot dogs and 10 drinks

Evaluate 10!

• 3,628,800

• 362,880

• 39,916,800

• 40,320

Permutation is the situation when

• A different result occurs when positions of objects are switched

• counting principles are applied

• The same result occurs when positions of objects are switched

• I don't know

The symbol of n! is read as ______.

• N exclamation

• N factorial

• N prime

• N radius