Probability Guided Notes and Worksheets

Grade Levels
9th - 11th, Homeschool
Formats Included
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17 + answer keys
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  1. This is a complete compound and conditional probability unit. This is a bonus unit that's included in my Geometry Curriculum.*Note: This unit is best suited for on-level or lower-level/special education math classes. Supplements will most likely be needed for an honors or upper-level math class.*Upd
  2. This bundle includes all of my geometry notes and worksheets! *These do not include my video lessons! You must by my units or complete curriculums to receive links to the video lessons! This is a budget-friendly option. By purchasing this bundle, you pay 20% less than you would if you purchased each
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These probability notes and worksheets cover all of the compound and conditionality probability standards for high school.

Topics covered:

  • set theory (union, intersection, complement, Venn diagrams)
  • outcomes and basic probability (coins, dice, tree diagrams, Fundamental Counting Principle)
  • compound probability (addition and multiplication rules)
  • conditional probability (both independent and dependent)

Students must have a basic knowledge of a standard deck of playing cards to complete some of the notes/worksheets. I always print out a picture of the 52 cards by suit. I even let students have a "card day" where they play with cards and learn the suits/types!

*17 pages + all answer keys included!

These notes pair great with my:

**Or get my complete Probability Unit Bundle!

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Total Pages
17 + answer keys
Answer Key
Teaching Duration
1 Week
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to see state-specific standards (only available in the US).
Describe events as subsets of a sample space (the set of outcomes) using characteristics (or categories) of the outcomes, or as unions, intersections, or complements of other events (“or,” “and,” “not”).
Understand that two events 𝘈 and 𝘉 are independent if the probability of 𝘈 and 𝘉 occurring together is the product of their probabilities, and use this characterization to determine if they are independent.
Understand the conditional probability of 𝘈 given 𝘉 as 𝘗(𝘈 and 𝘉)/𝘗(𝘉), and interpret independence of 𝘈 and 𝘉 as saying that the conditional probability of 𝘈 given 𝘉 is the same as the probability of 𝘈, and the conditional probability of 𝘉 given 𝘈 is the same as the probability of 𝘉.
Construct and interpret two-way frequency tables of data when two categories are associated with each object being classified. Use the two-way table as a sample space to decide if events are independent and to approximate conditional probabilities. For example, collect data from a random sample of students in your school on their favorite subject among math, science, and English. Estimate the probability that a randomly selected student from your school will favor science given that the student is in tenth grade. Do the same for other subjects and compare the results.
Recognize and explain the concepts of conditional probability and independence in everyday language and everyday situations. For example, compare the chance of having lung cancer if you are a smoker with the chance of being a smoker if you have lung cancer.


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