Here's the official formula:
The number of ways to CHOOSE n objects
* This can also be phrased as "how many combinations?" |
Here are some other notations:
"C" is for "choose" (it's really "combinations") | This is NOT |
Let's try it!
You have 105 employees and you need to select a committee of
3. How many ways can you do it?
* Ask yourself: Does order matter?
NO! So, use the choosing formula.