Principles of Probability

Part of the Probability For Dummies Cheat Sheet

The mathematics field of probability has its own rules, definitions, and laws, which you can use to find the probability of outcomes, events, or combinations of outcomes and events. To determine probability, you need to add or subtract, multiply or divide the probabilities of the original outcomes and events. You use some combinations so often that they have their own rules and formulas. The better you understand the ideas behind the formulas, the more likely it is that you'll remember them and be able to use them successfully.

Probability rules

image0.png

Probability definitions

image1.png

Probability laws

image2.png

Counting rules

image3.png
  • Add a Comment
  • Print
  • Share
blog comments powered by Disqus

SERIES
Probability For Dummies Cheat Sheet

Advertisement

Inside Dummies.com

Dummies.com Sweepstakes

Win $500. Easy.