Worksheets · Algebra 1

Algebra 1 dot plot worksheet

Each dot is one value, so the tallest stack is the mode and the whole picture is the data set written out. Counting the dots is the step students skip.

Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep

Sigma Prep · sigmaprep.io/worksheets

Name

Dot Plots

Date Period

Use the dot plot to answer each question.

  1. Find the mean34567
  2. Find the median8910111213
  3. Find the mode12131415161718
  4. Find the range12345
  5. Find the mean789101112
  6. Find the median10111213141516
  7. Find the mode12345
  8. Find the range67891011
  9. Find the mean10111213141516
  10. Find the median12345
  11. Find the mode5678910
  12. Find the range9101112131415
  13. Find the mean34567
  14. Find the median5678910
  15. Find the mode11121314151617
  16. Find the range12345
  17. Find the mean8910111213
  18. Find the median10111213141516
  19. Find the mode45678
  20. Find the range789101112

Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep

Sigma Prep · sigmaprep.io/worksheets

Name

Dot PlotsAnswer keyVersion 1

Date Period

Use the dot plot to answer each question.

  1. Find the mean345675
  2. Find the median891011121311
  3. Find the mode1213141516171817
  4. Find the range123454
  5. Find the mean7891011129
  6. Find the median1011121314151612.5
  7. Find the mode123451
  8. Find the range678910115
  9. Find the mean1011121314151613
  10. Find the median123454
  11. Find the mode56789107
  12. Find the range91011121314156
  13. Find the mean345675
  14. Find the median56789107
  15. Find the mode1112131415161716
  16. Find the range123454
  17. Find the mean891011121310
  18. Find the median1011121314151613
  19. Find the mode456785
  20. Find the range7891011125

Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep

How to do these

A dot plot has 3 dots over 5 and 1 over 8. Find the range

  1. The smallest value is 5 and the largest is 8.
  2. 8 minus 5.

The answer is 3.

Where students go wrong

Reading the height of a stack as the value. The height is how many times it happened; the value is the number underneath it.

Also called line plot, dot plot worksheet or reading a dot plot.

What you can put on this worksheet

The mean
Find the mean 4
The median
Find the median 4
The mode
Find the mode 4
The range
Find the range 4

Questions about these worksheets

Yes. Every dot plot sheet is free to print and free to download as a PDF. There is no account to make, no email to hand over and no limit on how many you take.

Yes. The answer key prints on a second page, and you can choose whether it shows each question beside its answer or just the answers in a list.

Yes. Print straight from the page, or download the PDF and print that. The sheet is laid out for paper rather than squeezed off a screen, so there is room to work under each question, and the answer key comes out on its own page.

Algebra 1 is usually taken around 8th or 9th grade, though schools vary and plenty of students meet it earlier or later. Pick the difficulty rather than the grade: the easy level suits a first lesson on it, the hard level suits review before a test.

Yes, as many as you like. The questions are built fresh each time rather than picked from a fixed set of files, so pressing Generate gives a new sheet. That is what you want for a second class, a retake, or two students sitting next to each other.

That is the closest comparison, and Kuta Software is good software. It is also paid software you install on a computer. These worksheets run in a browser tab for free, with no account and nothing to install. Like Kuta, the dot plot questions are generated when you ask for them rather than pulled from a fixed set of files, so two classes never get the same sheet, and the answer key comes with it.

Yes. There are three levels, and you can tick more than one for a sheet that mixes them, in which case the questions come out easiest first. The harder levels are not just larger numbers: they ask for something the easy ones do not.

You pick from 4: the mean, the median, the mode and the range. Tick as many as you want and set how many of each, or let it spread them evenly.

Reading the height of a stack as the value. The height is how many times it happened; the value is the number underneath it.