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Recycling Drive: Count the Observations

Count observations in recycling-drive lists, frequency tables, and histograms. Distinguish recorded measurements from totals collected.

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
14 questions
Classroom-ready

Details

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

About this worksheet

What students practice

Students report the number of observations in raw data lists, frequency tables, and histograms.
Students distinguish the number of observations from data values and the number of distinct values.
Students count observations when records include zeros, repeated measurements, or missing entries.

How to use

Use after introducing observations and frequency tables. Have students identify what each observation represents before counting, then discuss the final record-checking task.

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

Recycling Drive: Count the Observations

Report the size of a data set, not the amount collected.

Read the Collection Records

An observation is one recorded value in the data set being studied. Count repeated values separately. A recorded zero counts; a missing value does not.

Volunteers record the number of cans in each donated bag: 14, 18, 14, 22, 16, 18, 14, 20, 16. Each bag provides one observation.

How many observations are in this data set?

The bottle station records the number of donations during six collection periods: 0, 3, 3, 0, 5, 2. How many observations are recorded?