Unit 4 · Probability

Chapter 4.4

Which Idea Opens It? Counting and Probability

Counting problems rarely announce which method they need, and the wrong method can take ten times as long.

lesson 22 of 42

By the end

  1. 01Name the counting or probability idea that opens each problem from its wording
  2. 02Set up each problem in a few lines before computing

In unit 4

  1. 4.1Fix the Sample Space First
  2. 4.2Probability One Step at a Time
  3. 4.3Geometric Probability and Expected Value
  4. 4.4Which Idea Opens It? Counting and Probability
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