Skip to content
Back to Comparing groups and categorical data
PricingLog in

Probability and Statistics

Sparse counts and exact tests

Expected cell counts help determine when a chi-square approximation is unreliable and an exact test is useful.

3 minutes. No sign-up needed.

Chapter 9: Comparing groups and categorical data6 lessons · 25 min
  1. 1Independent two-sample mean comparisons4 min
  2. 2Paired mean comparisons4 min
  3. 3Two-proportion comparisons4 min
  4. 4Chi-square test of independence4 min
  5. 5Sparse counts and exact tests3 min
  6. 6Challenge: Comparing groups and categorical data6 min
Go to the chapter

This lesson is part of the Probability and Statistics course.

Example plan3 lessons · 13 min

Chi-square test of independence4 min
Sparse counts and exact testsComparing groups and categorical data3 min
Challenge: Comparing groups and categorical dataComparing groups and categorical data6 min

An example. Your plan follows your answers, so it can start later and end sooner.

Build my plan

Start free, no account needed.