Find Mean, Median, and Range

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Sort values first. The median is the middle value. The mean is the sum divided by the count. The range is the maximum minus the minimum; these summaries answer different questions.

Worked example

For 2, 4, 9, the median is 4, mean is 15/3 = 5, and range is 9 - 2 = 7.

1. For 3, 5, 7, what is the mean? Answer

2. For 9, 2, 6, what is the median? Answer

3. For 4, 8, 12, what is the range? Answer

4. For 2, 2, 8, what is the mean? Answer

5. Must the mean be one of the observed values? Yes, always No, an average can lie between observations Only if every value is positive