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Summer Jobs: How Much Data?

Count observations in summer-job records, frequency tables, and histograms, and explain what a summary does not reveal.

Grade 6MathInteractive · Printable

Aligned to6.SP.B.5.a

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What’s included

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

Details

Format: Interactive · Printable
Grade: Grade 6
Subject: Math
Question types: Fill in the blank, Multiple choice, Circle the answer, Short answer

About this worksheet

What students practice

Students report the number of observations represented by job records, frequency tables, and histograms.
Students distinguish the number of observations from the number of workers, categories, or measurements per job.
Students determine how combining or regrouping records affects the number of observations.

How to use

Have students identify what one observation represents before counting. Use the final question to discuss why a summary must report the data set's size.

Curriculum

Common Core standard covered

6.SP.B.5.a

Summarize a data set by reporting how many observations it has.

Preview

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Name Date

Summer Jobs: How Much Data?

Report the number of observations in lawn-mowing and babysitting records.

What Counts as One Observation?

Identify the data set being described. Count observations, not the total hours or dollars.

Nia completes 5 lawn-mowing jobs. For each job, she records the minutes worked, the dollars earned, and the lawn area. Consider only her data set of minutes worked. How many observations does it contain?

A. It contains 5 observations.
B. It contains 15 observations.
C. It contains 3 observations.
D. It contains 8 observations.

This table summarizes one duration measurement for each of Mateo's completed lawn-mowing jobs.

Mateo's Mowing Durations
Duration (minutes)	Number of jobs
20	3
30	6
40	4
50	2

How many duration observations are represented? observations

For each of six workdays, Nia records the total number of lawns she mows. Her daily totals are 2, 4, 1, 3, 2, and 5. In this data set, one observation is one daily total, not one lawn.

How many observations are in the data set? observations

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