Grade 7 · Math

7th grade Compare two groups using the mean or median worksheet

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Compare two groups using the mean or median

Grade 7 Math Worksheet - Building Confidence

NameDate

Circle the best answer, or write your answer on the line.

Ari grew bean plants in sun and in shade, then measured them in centimeters. No plant complained about its spot. How much greater is the median for the sun plants than for the shade plants?
Bo counted jump rope jumps in 30 seconds for two classes. One rope got tangled in a very dramatic way. How much greater is the median for the morning class than for the afternoon class?
Players on two teams each took 20 free throws, and Esme plotted the shots made. The hoop needed a nap. How much greater is the median for the red team than for the blue team?
Kira timed how long members of two book clubs read at lunch. Sandwiches were eaten with one hand. How much greater is the mean for the mystery club than for the comic club?
Luz measured the sunflowers in two school gardens, in inches. The tallest one now looks down on everybody. How much greater is the mean for the north garden than for the south garden?
Two robots each played five rounds, and Milo plotted the points. The red robot did a victory spin. How much greater is the mean for the red robot than for the blue robot?
Pia measured fallen oak and maple leaves in centimeters. A squirrel watched closely. How much greater is the median for the oak leaves than for the maple leaves?
Ren timed class pet snails crawling on a wet board and a dry board. One dry-board snail zoomed. How much greater is the median for the wet-board snails than for the dry-board snails?
Two classes built block towers, and Zee counted the blocks in each tower. One tower leaned like it was listening. How much greater is the range for the first class than for the second class?
Two drum clubs played a rhythm game, and Bo plotted each player's points. The drums were very happy. How much greater is the range for the morning club than for the lunch club?

7th grade Compare two groups using the mean or median worksheet – printable — Print: 1 2 3 4 5 6

About this worksheet

Compare two groups using the mean or median. Every version has 10 questions, and the answer key prints on the second page.

What your child will learn

I can find the median or the mean of two dot plots and say how much greater one is than the other.
I can compare how spread out two groups are by their ranges.
I can say which group tends to have bigger values, and why "every one is bigger" does not follow when the plots overlap.

Standard: 7.SP.B.4

Words to know

median: The middle dot of a plot; with two middle dots, halfway between them.

mean: The balance point: add every dot, then divide by the number of dots.

range: How far a plot stretches: right-most dot − left-most dot.

center: A typical value of a group: its median or its mean.

overlap: Part of one plot sits over the same numbers as part of the other.

tend to: Usually, for the group as a whole, not for every single one.

random sample: Some members picked by chance, so they stand for the whole group.

Common mistakes

Your child compared the biggest value in each group instead of a typical value.

Your child found the center or spread of one group but did not compare it with the other group.

Your child compared the totals of the two groups instead of their means. Try: share each total equally among the group's members, then compare one share with the other.

What to say

Ask: where is the middle, or the balance point, of each group, and how far apart are those?

Ask: how much more is one group's number than the other's?

Questions parents ask

What is the most common mistake with compare two groups using the mean or median?

Your child compared the biggest value in each group instead of a typical value.

How can I help my child with compare two groups using the mean or median?

Ask: where is the middle, or the balance point, of each group, and how far apart are those?

Are these 7th grade math worksheets free to print?

Yes. All 6 printable versions at each level are free to print, with the answer key, and no account is needed.

More grade 7 math

See all grade 7 math

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