Unit 3 · Counting

Chapter 3.6

Too Few Boxes

Some facts are forced simply because there are more things than places to put them.

lesson 18 of 42

By the end

  1. 01Use the pigeonhole principle to force a repeat
  2. 02Bound a maximum by grouping items so each group can hold at most one

In unit 3

  1. 3.1Multiply or Add?
  2. 3.2Count What You Don't Want
  3. 3.3Arrangements and Overcounting
  4. 3.4Choosing, Pascal, and Stars and Bars
  5. 3.5Counting Two Ways
  6. 3.6Too Few Boxes
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