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Compound and Conditional Probability


Video lessons with examples and solutions to help High School students learn to find the conditional probability of A given B as the fraction of Bӳ outcomes that also belong to A, and interpret the answer in terms of the model.



  • Find and interpret conditional probabilities using a two-way table, Venn diagram, or tree diagram.
  • Understand the difference between compound and conditional probabilities.

Common Core: HSS-CP.B.6


Compound Probability of Independent Events
Probability of particular sequences of flips.


Probability of Compound Events
Probability of compound events, both independent and dependent.





Probability of Compound Events.


Conditional Probability with Tables and Venn Diagrams.




Conditional Probability and Venn Diagrams.


Probability Tree Diagrams
Using a probability tree diagram to calculate probabilities of two events which are not independent.



Try out our new and fun Fraction Concoction Game.

Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.

Fraction Concoction Game


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