How to Read Standard Deviation in a Small Data Set
Standard deviation is most useful when compared with the mean and checked for outliers.
Standard deviation tells you how spread out a group of numbers is, but it is easiest to understand beside the mean and the actual values.
Enter the values in the standard deviation calculator and compare the result with the mean calculator. If the deviation is large relative to the mean, the data may be more spread out than a single average suggests.
For small samples, look for outliers before making a decision. A percentage calculator can help express the spread as a share of the average when explaining the result.