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Track Meet: What the Results Board Reveals worksheet preview

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Track Meet: What the Results Board Reveals

Analyze track meet records using joint and conditional relative frequencies, unequal group sizes, and evidence of association.

Grade 8MathInteractive · Printable

Aligned to8.SP.A.4

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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 8
Subject
Math
Question types
Fill in the blank, Multiple choice, Circle the answer, Short answer

About this worksheet

What students practice

  • Students calculate joint and conditional relative frequencies from two-way tables.
  • Students reconstruct frequency counts from relative frequencies and sample sizes.
  • Students compare conditional percentages to describe associations between categorical variables.

How to use

Use after introducing two-way tables. Have students label the group used as the denominator before calculating each percentage, then discuss the final board update.

Curriculum

Common Core standard covered

8.SP.A.4

Find patterns of association in categorical data with two-way tables of frequencies and relative frequencies.

Preview

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Name Date

Track Meet: What the Results Board Reveals

Use two-way tables to compare categorical results fairly.

Personal-Best Records

Each record represents one athlete's result in one event. A personal best is that athlete's best result so far. Use this board for Questions 1–5.

Results by Event Group
Event groupPersonal bestNot a personal bestTotal
Sprint181230
Distance12820
Field102030
Total404080
1.
The board editor wants the percentage of all records that are field-event personal bests. Which calculation should the editor use?
  • A. 10 ÷ 40 × 100
  • B. 10 ÷ 80 × 100
  • C. 30 ÷ 80 × 100
  • D. 10 ÷ 30 × 100
2.
A second version of the board shows each cell as a percentage of all 80 records. Complete the three marked cells.
Percent of All Records
Event groupPersonal bestNot a personal best
Sprint?15%
Distance15%?
Field12.5%?

Sprint personal best:  %
Distance, not a personal best:  %
Field, not a personal best:  %

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