MyMathKidK-8 Curriculum

Grade 7 Statistics Worksheets

Master statistics step by step, from basic concepts to advanced problem solving

Common Core: 7.SP — Statistics & Probability

Watch & Learn

Learning Path

Start with Lesson 1 and work your way through!

Random Sampling

Understand random samples

Use a random sample to estimate a populationUse several samples to see how estimates vary

Compare Populations

Compare two data sets

Compare two data sets by their means and mediansCompare spread with the range and MAD

Making Inferences

Draw conclusions from data

Estimate a population mean or count from a random sampleCompare two populations using sample means

Unit Review

Review all statistics

Review all conceptsPrepare for assessment

How to solve Grade 7 statistics problems

Real problems from these worksheets, solved one step at a time — the same explanations your child sees when practicing online.

Example 1
Five random samples of 10 students each were taken from the 100 students at a school. The number in each sample who walk to school: 3, 2, 4, 6, 5. Use the mean of the samples to estimate how many of the 100 students walk to school.
1. Find the mean of the samples: (3 + 2 + 4 + 6 + 5) ÷ 5 = 20 ÷ 5 = 4.
2. So a typical sample of 10 has 4 who walk to school. Each sample of 10 stands for 100 ÷ 10 = 10 times as many students.
3. 4 × 10 = 40, so about 40 of the 100 students walk to school.
Answer: 40
Example 2
A random sample of 10 of the 500 families in a town reported miles driven to work each day: 52, 15, 56, 29, 41, 40, 54, 42, 27, 29. Predict how many of all 500 drive more than 30 miles.
1. In the sample, the values more than 30 are 52, 56, 41, 40, 54, 42 — 6 of the 10.
2. The sample is random, so about 6/10 of all 500 do too. Each one in the sample stands for 500 ÷ 10 = 50.
3. 6 × 50 = 300, so about 300 of the 500 drive more than 30 miles.
Answer: 300
Example 3
Find the mean of: 2, 7, 12, 13, 18, 19, 23
1. Add all the numbers: 2 + 7 + 12 + 13 + 18 + 19 + 23 = 94.
2. There are 7 numbers, so divide the total by 7: 94 ÷ 7 = 13.428…
3. Rounded to the nearest hundredth, the mean is 13.43.
Answer: 13.43

Frequently Asked Questions

Are these Grade 7 Statistics worksheets free?: All printable Statistics worksheets on MyMathKid are free to download and print. Answer keys are a premium feature available with a subscription.
How many Statistics worksheets are available for Grade 7?: There are 4 progressive Statistics lessons with worksheets for Grade 7, covering skills from foundational concepts to advanced problem solving.
Are these Statistics worksheets aligned to Common Core?: Yes — Grade 7 Statistics aligns with Common Core 7.SP (Statistics & Probability).
What will my child practice with these Statistics worksheets?: Your child will practice: Random Sampling, Compare Populations, Making Inferences, Unit Review.