Math glossary
Mean
The average: add all the values, then divide by how many there are.
The mean shares the total out evenly, as if every value were the same.
Example: The mean of 2, 4 and 9 is (2 + 4 + 9) ÷ 3 = 5.
Lessons, worksheets, practice and tools on this: Data and graphs.
Related words
- Median: The middle value when the data is put in order.
- Mode: The value that appears most often in a set of data.
- Probability: How likely something is to happen.
- Line plot: A graph that shows data on a number line, with an X above the number for each data point.