Statistical Analysis Stack Exchange
Statistical Analysis Stack Exchange

Questions tagged [dispersion]

This tag is very ambiguous. Dispersion is a general term for how spread apart values are. For questions related to disease dissemination content, use the tag epidemiology. For other meanings of dispersion consider using a related tag or creating a new one.

Tag usage

126 questions
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1 answer

Use Cases For Coefficient of Variation vs Index of Dispersion

I am attempting to algorithmically estimate the burstiness of a dataset and have found two comparable metrics. The coefficient of variation is the ratio of the standard deviation to the mean. The index of dispersion is the ratio of the variance to…
Joshua Bambrick
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4
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3 answers

Which measure of dispersion is this function related to?

Consider a sample $x=\{x_1,...,x_n\}$. Define the average as $\bar x$. Consider the following formula: $$ \dfrac{\sum_{i=1}^n\left(\dfrac{x_i}{\bar x} \right)^c}{n} $$ or equivalently: $$ \dfrac{\sum_{i=1}^n\left(1 + \dfrac{\epsilon_i}{\bar x}…
luchonacho
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Why do we need coefficient of mean deviation?

Mean deviation can give us a sense of how much data is dispersed from one of the average measurements (mean,mode,median). Mean deviation depends on the difference between the data and the average measurement.$MD=1/n∑(x - y)$ where x is the different…
Sami
  • 113
0
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1 answer

How to compare the degree of dispersion of different distributions?

I don't know if it is a good question or a well-defined question, but I really need some suggestions! Any suggestion is valuable for me! Very much thanks! The question is: There are many attributions of a research subject, which can be quantified as…
C.K.
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