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7th Grade Math (Math 7) · Chapter 11 · Lesson 11.7 · Printable PDF

Probability Models: Equally Likely or Not Worksheet with Answer Key

7 problems on probability models: checking proposed models for a game result, a toy machine's labels, equally likely gems, building a bag to match a model, when a uniform model is justified, a spinner, and a computer program's team picks. 3 pages, with a worked answer key.

7 problems3 pagesanswer key
Printable Probability models: equally likely or not worksheet with answer key - 7th Grade Math (Math 7) (Page 1 PDF preview)
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What's on the worksheet

  1. Decide which proposed models for a win, tie and loss are valid.
    0.45, 0.2, 0.35\dfrac{1}{2},\ \dfrac{1}{4},\ \dfrac{1}{3}0.7, 0, 0.340%, 35%, 30%1.1, −0.05, −0.05
  2. Find the chance of an ultra rare toy from a machine's label.
  3. Find probabilities in a video game prize model with four equally likely gems.
  4. Plan a bag of tokens so the colors follow Mia's model.
  5. Decide if a uniform model is justified for each experiment.
  6. Find the green and yellow chances on Naomi's spinner from its angles.
  7. Check Hiro's program for picking teams with a table of counts.

Teach it first

The free lesson teaches it with worked examples and practice problems.

Probability models: equally likely or not: the lesson ›

More Chapter 11 worksheets: Probability