3. Calculate the variance


To calculate the variance of a series,  you may choose between using the =VAR.P(...) and =VAR.S(...) functions. Both functions provide the variance, but based on different assumptions and therefore on slightly different formulas.

 

var.pUse =VAR.P(...) if the dataset that you analyse is a whole population.

 

 

var.sUse =VAR.S(...) if the dataset is a sample of a population.

 

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