Which average?
The mean uses every value but is pulled by one very big or small number. The median is the middle and ignores extremes. The mode is the most common — the only average for things like shoe size or favourite colour.
Statistics Explorer 📊
Type or paste your data. Get the mean, median, mode and range with the working, a tally chart, a stem-and-leaf diagram, a frequency chart and a box plot.
All three averages
Stem and leaf
Box plot
Nothing leaves your device
Working
Frequency table
Stem and leaf
Good to know
Spread matters too
Two classes can have the same mean but very different results. The range and the interquartile range say how spread out the data is; the box plot shows it at a glance.
Nothing leaves your device
Everything is worked out in your browser and nothing is saved. The address bar keeps the data, so a link shares the same results.
Tool created by
លោក ណាត ប៊ុនឆ័យ · Mr. Nat Bunchhai
Alpha Academy Cambodia
Statistics is about understanding data.
Our tutors help students choose the right average, read charts and write about data clearly — for school tests and national exams.