Question

What are the methods of measuring dispersion( absolute and relative) ​

Answer 1

Absolute method

1. range
2. Quartile , inter Quartile deviation
3. Mean deviation
4. Standard deviation
5. Lorenz curve

Relative method

1. Coefficient range
2. Coefficient quartile
3. Coefficient mean
4. Coefficient Standard deviation
5. Coefficient variation

Answer 2

Answer:

Explanation:

Absolute & relative dispersion are two different ways to measure the spread of a data set. They are used extensively in biological statistics, as biological phenomena almost always show some variation and spread.

The easiest way to differentiate relative dispersion/absolute dispersion is to check whether your statistic involves units. Absolute measures always have units, while relative measures do not.

Absolute Measures of Dispersion

Absolute measures of dispersion include:

The range,

The quartile deviation,

The mean deviation,

The standard deviation and variance.

Absolute measures of dispersion use the original units of data, and are most useful for understanding the dispersion within the context of your experiment and measurements.

Relative Measures of Dispersion

Relative measures of dispersion are calculated as ratios or percentages; for example, one relative measure of dispersion is the ratio of the standard deviation to the mean. Relative measures of dispersion are always dimensionless, and they are particularly useful for making comparisons between separate data sets or different experiments that might use different units. They are sometimes called coefficients of dispersion.