Box and whisker plot worksheet for Algebra 1
Algebra 1 reads box plots: the median, quartiles and interquartile range off the plot, what percent of the data lies in a section, and which of two groups has the higher median or the more consistent values. Each section between the five numbers holds about a quarter of the data.
Also taught in Pre-Algebra and Statistics, each at its own level and with its own examples.
Select your difficulty
Pick more than one for a sheet that mixes them.
The preview can look cramped on a phone. The PDF and printed sheet come out normal.
Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep
Sigma Prep · sigmaprep.io/worksheets Name Box and Whisker Plots Date Period Use the plot to answer each question.
Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep |
Sigma Prep · sigmaprep.io/worksheets Name Box and Whisker PlotsAnswer keyVersion 2 Date Period Use the plot to answer each question.
Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep |
How to do these
A box plot has and . About what percent of the data lies between 20 and 35?
- The box runs from Q1 to Q3.
- Each of the four sections holds about a quarter of the values, and the box is two of them.
The answer is .
Where students go wrong
Thinking a longer section holds more of the data. Each of the four sections holds about a quarter of the values; a long whisker means those values are spread out, not that there are more of them.
Also called box plot or five number summary.
What you can put on this worksheet
- Reading a box plot
- Find the maximum. — a box plot from 3 to 10, median 8 →
- The five-number summary from a list
- Find the median:
. → - What percent of the data lies in a section
- Use the box plot to estimate what percent of the data values are less than . — a box plot from 3 to 10, median 8 →
- Make a box plot from data
- Make a box plot of the data: , , , , , , , , . For quartiles, split the data at the median, and leave the median out of both halves when the count is odd. → Min , Q1 , median , Q3 , max
- Decimal data, or a longer list
- Make a box plot of the data: , , , , , , , , , , , , , , , . For quartiles, split the data at the median, and leave the median out of both halves when the count is odd. → Min , Q1 , median , Q3 , max
- Compare two box plots
- These box plots compare how Class A and Class B did on a math test. Measure from the lowest score to the highest in each class. Which class has the larger range? → Class B: range vs