Number of subsets

12.2 Outline

1. Committee problem
   1. definition
   2. combination formula
   3. deck of cards
2. Pascal’s triangle
   1. n choose r
   2. table entries
3. Counting with the binomial theorem
   1. binomial theorem
   2. number of subsets

12.2 Essential Ideas

Combinations
A combination of r elements selected from a … See the whole entry