Permuation and Combination

Choosing a subset of a set is an example of _______

There are 100 people at a meeting. They each shake

hands with everyone else. How many handshakes were there?

• 4,950

• 4,000

• 9,900

• 9,000

A team of 18 softball players needs to

choose three players to refill the water cooler.

• 816

• 800

• 4896

• 4000

 Give the value of        $\frac{P\left(10,4\right)}{5}$  

• 5 040

• 4 050

• 2 008

• 1 008

Selecting 3 colors from 10 choices, are we dealing with permutations or combinations?

• Permutation

• Combination

• permutation and combination are exactly the same thing

• none of these