Measure of Variation

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. 10
    B. 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.]