OwlSheets
National Park Road Trip: Sample Evidence worksheet preview

WorksheetPremium

National Park Road Trip: Sample Evidence

Use national park visitor samples to estimate needs, compare repeated samples, and evaluate road-trip planning claims.

Grade 7MathInteractive · Printable

Aligned to7.SP.A.2

Buy this worksheet: $1.50

Or unlock every Premium worksheet with Premium

PrintUnlock to print
Answer keyUnlock to see answers
Assign to classUnlock to assign with a class code

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 to estimate population counts.
  • Students compare estimates from repeated random samples of the same population.
  • Students combine unequal-sized samples using counts rather than averaging percentages.

How to use

Have students show their calculations beside each item. Discuss why sample-based plans are useful even though they are not guarantees.

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

OwlSheets.com

Name Date

National Park Road Trip: Sample Evidence

Use random samples to plan supplies and stops without treating estimates as facts.

Plan the Map Supply

A student road-trip team studies visitor records from national parks. Use sample results to make estimates, not exact population claims.

At the first park, staff randomly select 30 of the 900 visitor parties recorded last Saturday. Each party appears once in the records. Of the sampled parties, 21 requested a printed road map and 9 used only a digital map.
1.
Which statement is supported by this sample?
  • A. About 30% of all 900 parties requested a printed map.
  • B. Exactly 21 of all 900 parties requested a printed map.
  • C. Exactly 70% of all 900 parties requested a printed map.
  • D. About 70% of all 900 parties requested a printed map.
2.
Use the sample to estimate how many of last Saturday's 900 parties used only a digital map.

Estimated number:   parties

The preview shows the first questions. Unlock the worksheet to see all of it.

Related worksheets