Stdev S Formula. The reason the population standard deviation will be smaller is because if we know every value in the population then we know the exact standard deviation. In stdev s or stdev the squared deviation is divided by total number of sample 1.
The stdev s function is used when your data is a sample of entire population. The function is new in excel 2010 and so is not available in earlier versions of excel. This means that most data points range is within 2 7 of the average value i e between 3 7 to 9 1 either side of the average value of 6 4.
If the standard deviation value is lower then the frequency of the data points is closer to the mean average value.
Standard deviation is a measure of how much variance there is in a set of numbers compared to the average mean of the numbers. Standard deviation excel 2 7. If data represents an entire population use the stdev p function. 9 5 2 16.
