Compare Two Dot Plots and Their Overlap
Written by Adi Ackerman, Head Teacher
"Compare Two Dot Plots and Their Overlap" is written for 7th Grade (Ages 12-13), and it covers Common Core 7.SP.B.3. A 6th grader who is already steady on data & graphing can use it too, and an older student can use it as a short review.
7th grade math worksheet: compare two dot plots such as puzzle times for Team A and Team B by their means, difference and overlap. Answer key included. Part of our comparing populations and sampling data & graphing collection. Aligned to Common Core standards.
How do I use this worksheet?
Use the center and range sheets first, then the comparison sheets. The claims sheet works well for discussion.
What students will practice
- Students will find the mean of each dot plot and the difference between the means.
- Students will find where two dot plots overlap and count the dots in the overlap.
- Students will compare two samples using their dot plots.
Draw Inferences From Random Samples
Compare Two Populations With Measures of Center
Compare Spread Using Range and Signed Data
Find the Range in Real-World Data Tables
Mean, Median and Mode With Signed Decimals
Find a Missing Value From a Target Mean
Median of Even-Sized Sets With Rational Values
Describe Data Using Center and Spread
Curriculum Links
Common Core State Standards
Statistics and Probability · 7th Grade
Standard: Informally assess the degree of visual overlap of two numerical data distributions with similar variabilities, measuring the difference between the centers by expressing it as a multiple of a measure of variability.
View all 7.SP.B.3 worksheets →Find this in the curriculum
Browse the grade, subject, and topic this belongs to.
FAQ
How do I use this comparing populations and sampling worksheet?
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Use the center and range sheets first, then the comparison sheets. The claims sheet works well for discussion.
What does this worksheet teach?
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Compare two dot plots such as puzzle times for Team A and Team B by their means, difference and overlap. The directions on the page read: Find each mean and their difference. The overlap runs from the first value with dots in both plots to the last. Write those two values, then count all the dots in that stretch. An answer key is included.
Can I use this comparing populations and sampling worksheet for homeschool or classroom?
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Yes, both. We made it for 7th grade data & graphing, and it works the same at home or at school. At home, a student can work through it alone and then go over it with you, which shows quickly what is solid and what needs another look. In class it works as independent practice, homework or a warm-up, and you can print one copy or a full set.
How do you compare two groups using data?
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Find a measure of center such as mean or median for each group, then compare them. Add a measure of spread such as the range to describe variation.
How do you find a missing value from a mean?
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Write an equation with the sum of the values divided by their count equal to the mean, then solve for x. The Find a Missing Value From a Target Mean worksheet does this.
How do you find the median of an even-sized set?
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Put the values in order, then find the number halfway between the two middle values. The Median of Even-Sized Sets worksheet uses rational values.
Do these worksheets have answer keys?
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Yes. All 11 worksheets in this group have answer keys.
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Worksheet Details
| Grade | 7th Grade |
| Subject | Math |
| Topic | Data & Graphing |
| Standard | 7.SP.B.3 |
| Pages | 1 page |
| Difficulty | Medium |
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Draw Inferences From Random Samples
Compare Two Populations With Measures of Center
Compare Spread Using Range and Signed Data
Find the Range in Real-World Data Tables
Mean, Median and Mode With Signed Decimals
Find a Missing Value From a Target Mean
Median of Even-Sized Sets With Rational Values
Describe Data Using Center and Spread