Grade 5 · Math · Lesson 20

Data Interpretation and Averages

A data set is a collection of numbers — test scores, temperatures, heights, or anything you can measure. Four simple statistics summarize a data set: the mean, the median, the mode, and the range. Each one tells you something different about the numbers, so picking the right one matters.

What this lesson teaches

1Compute the mean of a small data set by summing values and dividing by the count
2Find the median of an ordered data set by locating the middle value
3Identify the mode of a data set as the value that appears most often
4Calculate the range of a data set by subtracting the smallest from the largest value

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