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Skate and Climbing Gym: Sampling Lab worksheet preview

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Skate and Climbing Gym: Sampling Lab

Use random membership and climbing-route samples to estimate population totals, compare estimates, and explain sampling variability.

Grade 7MathInteractive · Printable

Aligned to7.SP.A.2

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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 use random sample proportions and means to estimate population totals.
  • Students compare estimates from several random samples of the same size.
  • Students explain why sample-based estimates are not guaranteed population values.

How to use

Have students calculate estimates independently, then compare how different random samples affect planning decisions. Discuss the final explanation together.

Curriculum

Common Core standard covered

7.SP.A.2

Use data from a random sample to make inferences about a population, and compare several samples to see how estimates vary.

Preview

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Name Date

Skate and Climbing Gym: Sampling Lab

Use random samples to estimate needs and compare predictions.

Membership Estimates

Use each random sample to make an estimate, not an exact count. Show calculations on separate paper.

A skate and climbing gym has 1,600 members. Staff randomly select 60 different members from the complete membership list. All 60 respond. Of these members, 39 would use a proposed beginner climbing route.
1.
Which population can this sample reasonably help staff make an inference about?
  • A. All people who might join next year.
  • B. All 1,600 members of this gym.
  • C. All people who live near the gym.
  • D. All visitors to other climbing gyms.
2.

What percent of the sampled members would use the proposed route?  %

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