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en.wikipedia.org/wiki/Standard_deviation

In statistics, the

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The symbol for

www.khanacademy.org/math/probability/data-distributions-a1/summarizing-spread-distributions/a/calculating-standard-deviation-step-by-step

Read and learn for free about the following article:

libweb.surrey.ac.uk/library/skills/Number Skills Leicester/page_19.htm

Whilst it is not necessary to learn the

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As an experimenter, it is important to be able to calculate

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A simple, step by step example of how to calculate

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In statistics, we are usually presented with having to calculate sample

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The variance and the closely-related standard deviation are measures of ... The

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Mar 23, 2010 ... Standard deviation quantifies how diverse the values of your data set are, ...
Statistics Lecture 3.3: Finding the Standard Deviation of a Data Set ...

www.easycalculation.com/statistics/standard-deviation.php

Standard Deviation (SD) is the measure of spread of the numbers in a set of data
from its mean value. ... Population SD : Population