Grade 7 · Math

7th grade How much do two dot plots overlap? worksheet

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How much do two dot plots overlap?

Grade 7 Math Worksheet

NameDate

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

Kira compared minutes until the ice cube melted for two groups. Nobody ate the evidence. The mean for the foam cups is how many MADs greater than the mean for the metal cups?
Ren compared pages read in an hour for two groups. The index went unread. The mean for the Owl readers is how many MADs greater than the mean for the Fox readers?
Esme compared miles biked on Saturday for two groups. A bell rang twice. The mean for the trail club is how many MADs greater than the mean for the city club?
Noah compared minutes of practice a day for two groups. The piano stayed in tune. The mean for the advanced group is how many MADs greater than the mean for the beginner group?
Ari compared snowman heights in inches for two groups. One scarf was very proud. The median for the first class is how many IQRs greater than the median for the second class?
Jun compared heights in centimeters for two groups. One seedling leaned a little. The median for the window seedlings is how many IQRs greater than the median for the hallway seedlings?
Pia compared miles biked on Sunday for two groups. The hill was not consulted. How many of the 14 dots, from both plots, are in the overlap?
Bo compared centimeters crawled in one minute for two groups. No snail was rushed. How many of the 14 dots, from both plots, are in the overlap?
Milo compared points scored in a maze game for two groups. One robot beeped politely. How many of the 14 dots, from both plots, are in the overlap?
Zee compared free throws made out of 20 for two groups. The sneakers stayed laced. How many of the 14 dots, from both plots, are in the overlap?

7th grade How much do two dot plots overlap? worksheet – printable — Print: 1 2 3 4 5 6

About this worksheet

How much do two dot plots overlap. Every version has 10 questions, and the answer key prints on the second page.

What your child will learn

I can say how many MADs (or IQRs) apart two centers are: the gap ÷ the spread.
I can find the stretch where two plots overlap and count the dots in it.
I can say which of two pairs of plots overlap more, and why a bigger gap in raw units does not mean less overlap.

Standard: 7.SP.B.3

Words to know

overlap: The stretch of the number line covered by both plots.

MAD: Mean absolute deviation: the mean of how far each dot is from the plot's mean.

IQR: Q3 − Q1: how long the middle half of the dots is.

times the spread: How many MADs (or IQRs) fit in the gap between two centers.

center: A typical value: the mean (balance point) or the median (middle dot).

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

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

Common mistakes

Your child gave the difference between the two centers without counting it in units of spread.

Your child multiplied the gap by the MAD.

Your child divided the MAD by the gap.

What to say

Ask: how many MADs (or IQRs) fit in that difference?

Ask: is the number of MADs in a gap bigger or smaller than the gap itself?

Ask: which number goes on top when you count how many MADs fit in the gap?

Questions parents ask

What is the most common mistake with how much do two dot plots overlap??

Your child gave the difference between the two centers without counting it in units of spread.

How can I help my child with how much do two dot plots overlap??

Ask: how many MADs (or IQRs) fit in that difference?

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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