It has a major role to play in finance, business, analysis, and measurements.īefore we roll into the topic, keep this definition in your mind!.It shows the central tendency, which is a very useful function in the analysis.It shows the larger deviations so that you can particularly look over them.Standard deviation converts the negative number to a positive number by squaring it. Standard deviation is very popular in the statistics, but why? the reasons for its popularity and its importance are listed below. In simple words the formula is defined as - Standard deviation is the square root of the ‘variance’.The lower the standard deviation, the narrower the spread of values.
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