Mathematics · Grades 3–7
Data tables and fair summaries · revision card
Identify what is counted and make sure categories are not accidentally counted twice.
Keep these ideas clear
Read categories
Identify what is counted and make sure categories are not accidentally counted twice.
Choose a suitable summary
Mean, median, mode and range describe different features.
Two useful examples
A reading survey records 8 fiction votes, 6 science votes and 4 history votes. How many votes?
8 + 6 + 4 = 18
18
Scores are 4, 6 and 8. Find the mean.
(4 + 6 + 8)/3 = 6
6
Explain it without looking
- Find the median of 3, 5, 9, 11.
Learning preview · teacher review required. Grade bands are approximate, not official curriculum alignment.