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Mathematics · Grade 7

Chance Models and Compound Probability

Learners place probabilities on a 0-to-1 scale, compute them for equally likely outcomes, and compare theoretical probabilities with the long-run relative frequencies of experiments, including results that show a model is wrong. They build uniform and non-uniform probability models, then find probabilities of compound events with organized lists, tables and tree diagrams, and design simulations for events that are hard to compute.

  • 4 lessons
  • About 95 minutes
  • Chance models and compound probability check: 11 questions
  • Ways to answer: choose an answer, type a fraction, type a number, place on a number line, put in order and sort into groups
See plans Included with Family, Teacher and School plans. Open in PlayOwl

What learners will discover

  • Express the probability of a chance event as a number from 0 to 1, interpret its size, and compute it for equally likely outcomes, including the complement of an event.
  • Estimate probabilities from the relative frequencies of experiments, make predictions, and explain differences between experimental and theoretical probabilities.
  • Develop uniform and non-uniform probability models, from the structure of a situation or from data, and use them to find probabilities and make predictions.
  • Find probabilities of compound events using organized lists, tables and tree diagrams, and design and interpret a simulation of a compound event.

Lessons

  1. Probability from 0 to 1 9 steps6 practiceabout 22 min
  2. Experiments and the long run 9 steps5 practiceabout 24 min
  3. Uniform and non-uniform models 9 steps5 practiceabout 23 min
  4. Compound events and simulations 9 steps5 practiceabout 26 min
  5. Chance models and compound probability check 11 questions at the end

Keep exploring

Games to practice with

  • Number-Line HopHelp the frog hop to the right number — from counting to negative fractions.
  • Ratio KitchenScale recipes, fill ratio tables and find the better buy.
  • Coordinate CourierDrive the parcel van to the right address on the coordinate grid.

More 7th grade math

Guide for grown-ups