The coefficient of variation (CV) is a statistical measure of the dispersion of data points in a dataset relative to their mean value. It is also known as the relative standard deviation (RSD), and is often expressed as a percentage.

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#sigma #statistics #maths #centraltendency #education #medians #mean #arithmetic #standarddeviationThe standard deviation is a statistical measure that quantifies the spread or dispersion of a data set around its mean. It tells us how much variation there is within a dataset
It is computed by first finding the arithmetic mean of the data, subtracting the mean from each value to get the deviations or distance of each value from the mean, squaring each deviation, finding the average of these squared deviations and finally finding the square root.
That’s why It is defined as the positive square root of the mean of the squares of the deviation of a set of observations from their arithmetic mean.

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Subscribe to My other channels:
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Biostatistics: youtube.com/c/biostatisticsfortherestofus

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EPI Info: youtube.com/c/EpiInfoforRookiesE4R

#sigma #statistics #maths #centraltendency #education #medians #mean #arithmetic #standarddeviation