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Channel: Measure of spread – Basic Statistics and Data Analysis
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Measure of dispersion/ variability or scatter describes the spread of the...

The measure of location or averages or central tendency is not sufficient to describe the characteristics of a distribution, because two or more distributions may have averages which are exactly alike,...

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Absolute Measures of Dispersion

Absolute measures gives an idea about the amount of dispersion/ spread in a set of observations. These quantities measures the dispersion in the same units as the units of original data. Absolute...

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Range: Measure of Dispersion

Measure of Central Tendency provides typical value about the data set, but it does not tell the actual story about data i.e. mean, median and mode are enough to get summary information, though we know...

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Standard Deviation: A Measure of Dispersion

Standard Deviation The standard deviation is a widely used concept in statistics and it tells how much variation (spread or dispersion) is in the data set. It can be defined as the positive square root...

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