Permutation and Combination

If all items chosen are treated the same it is a ....

• Comparision
• Permutation
• Combination
• Position

If all items chosen are treated differently it is a ...  

• Comparision
• Permutation
• Combination
• Position

A combination lock has 5 digits. How many distinct combinations can be made for the combination?

• 30240

• 252

• 126

• 15120

A disc jockey has to choose three songs for the last few minutes of his evening show.  If there are nine songs that he feels are appropriate for that time slot, then how many ways can he choose and arrange to play three of those nine songs?

• 84
• 504
• 9!
• 3!

Four students need to be selected from a class

of 15 to help clean up the campus. How many different ways can the 4 students be chosen?

• 32 760

• 60

• 1 365

When ordering a pizza, you can choose 2 toppings from the following: mushrooms, olives, pepperoni, pineapple, and sausage. How many different types of pizza can you order?

• 10

• 20

• 30

How many distinct permutations can be made from the word INDEPENDENCE?

• 1763200 permutations

• 1664200 permutations

• 1863200 permutations

• 1663200 permutations

In how many ways can you arrange the letters of the word SUMMERTIME?

• 151200 ways

• 302400 ways

• 3628800 ways

• 6547234 ways

What does the P stand for in _nP_r?

• Partners
• Positions
• Papers
• Permutations

What is the value of 8!

• 40320
• 36
• 362880
• 5040