OwlSheets
Swim Practice: Time Slots and Lap Counts worksheet preview

WorksheetPremium

Swim Practice: Time Slots and Lap Counts

Analyze swimming practice records using two-way frequency tables, conditional percentages, and comparisons of categorical data.

Grade 8MathInteractive · Printable

Aligned to8.SP.A.4

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

About this worksheet

What students practice

  • Students organize practice records into two-way frequency tables.
  • Students calculate and interpret relative frequencies using appropriate row or column totals.
  • Students compare conditional percentages to describe associations between categorical variables.

How to use

Have students identify the group used as the denominator before calculating each percentage. Discuss why an association does not establish cause and effect.

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

OwlSheets.com

Name Date

Swim Practice: Time Slots and Lap Counts

Use two-way tables to investigate patterns in practice records.

From Logs to Categories

Each record describes one swimmer's practice session. Use the log for Questions 1–5. A session with exactly 24 laps belongs in the “24 or more” category.

Ten Practice Records
RecordTime slotLaps
1Morning26
2Evening18
3Evening28
4Morning24
5Evening22
6Morning20
7Evening24
8Evening16
9Morning30
10Evening21
1.
Organize the log into four frequency counts.

How many morning records have fewer than 24 laps?  
How many morning records have 24 or more laps?  
How many evening records have fewer than 24 laps?  
How many evening records have 24 or more laps?  

2.
Match each percentage description to the number of records that should be its denominator.
  1. The percentage of morning records with 24 or more laps
  2. The percentage of all records that are evening records
  3. The percentage of evening records with fewer than 24 laps
  4. The percentage of records with 24 or more laps that are morning records
  1. A. 6 records
  2. B. 5 records
  3. C. 4 records
  4. D. 10 records

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

Related worksheets