Measure of Variation
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Definition of Measure of Variation
Measure of variation is a measure that describes how spread out or scattered a set of data. It is also known as measures of dispersion or measures of spread.
Examples of Measure of Variation

There are three measures of variation:
The range, the variance, and the standard deviation.
Video Examples: Measure of variation
Solved Example on Measure of Variation
Ques: The heights in cm of ten students are: 157, 152, 165, 151, 160, 156, 155, 162, 158, 163. Find the range of the data.
Choices:
A. 10B. 13
C. 15
D. 14
Correct Answer: D
Solution:

Step 1: Maximum height = 165.
Step 2: Minimum height = 151.
Step 3: Range = 165  151 = 14. [Range = maximum height  minimum height.]
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