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School Store: Track the Checkout Chances worksheet preview

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School Store: Track the Checkout Chances

Estimate probabilities from school store checkout trials, track relative frequencies, and predict results for future online orders.

Grade 7MathInteractive · Printable

Aligned to7.SP.C.6

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What’s included

  • Single worksheet
  • Auto-graded online
  • 1 Common Core standard
  • Printable answer key
  • 14 questions
  • Classroom-ready

Details

Format
Interactive · Printable
Grade
Grade 7
Subject
Math
Question types
Fill in the blank, Multiple choice, Circle the answer, Short answer

About this worksheet

What students practice

  • Students estimate probabilities using relative frequencies from repeated chance trials.
  • Students use experimental probabilities to predict counts in future trials.
  • Students explain why long-run estimates do not guarantee individual outcomes.

How to use

Have students calculate relative frequencies before making predictions. Discuss why larger trial sets help estimate probability but do not guarantee future results.

Curriculum

Common Core standard covered

7.SP.C.6

Estimate a probability by running a chance process many times and watching its relative frequency, then predict results.

Preview

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Name Date

School Store: Track the Checkout Chances

Use repeated trials to estimate probabilities and predict online order results.

Track the Checkout Trials

The school store tests a random checkout feature that awards either one bonus point or no bonus point. The feature stays unchanged, and each trial is independent.

1.
Which test plan would best help estimate the probability that an online order earns a bonus point?
  • A. Run many test checkouts and record every bonus and nonbonus result.
  • B. Run checkouts until a bonus appears, then record only that checkout.
  • C. Run one test checkout and use its result as the probability.
  • D. Run many test checkouts and change the feature after each bonus.
Running Totals: Bonus-Point Test
Total trialsTotal bonuses
209
5018
10034
20062
500150
2.
Use the running totals after 100 trials.

What is the relative frequency of a bonus? Write a decimal.  

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