You May Also Like the Following Excel Tutorials: Hope you found this Excel tutorial useful. In reality, you may have to do this for a bigger sample data set where you can observe normal distribution better. Note that when I say ‘most of the people’, it refers to the normal distribution of the sample (that is 68% of the sample population is within one standard deviation from the mean).Īlso, note that this is a very small sample set. The above formula returns the value of 2.81, which indicates that most of the people in the group would be within the weight range 69.2-2.81 and 69.2+2.81. In that case, you can use the below formula: =STDEV(D2:D10) In case you’re using Excel 2007 or prior versions, you will not have the STDEV.S function. To calculate the standard deviation using this data set, use the following formula: =STDEV.S(A2:A10) Suppose you have a data set as shown below: Example – Calculating the Standard Deviation for Weight Data Now, let’s have a look at a simple example where we calculate the standard deviation. These can refer to a data point, a named range, a single array, or a reference to an array.
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