Question

The counting subsets formula is used when determining how many ways a club of 20 students can select a four-person committee.
Answer True False

Answer 1

I don't know this by this name: The counting subsets formula

Answer 2

Yes, it's true. If there are r selections from a total of n possibilities, then the # of these r selections from a total of n possibilities is \[_{n}C _{r}\]

Answer 3

oh ok thnx!

Answer 4

Which is equivalent to finding subsets of r elements from a set of n elements (members).