While it’s easy to calculate the standard deviation, you need to know which formula to use in Excel. This can also be a case when there are many outliers in the data set. A higher value indicates that there is widespread variation in the data points.A lower value indicates that the data points tend to be closer to the average (mean) value. ![]() Now let’s interpret the standard deviation value: It means that most of the people’s weight is within 4 kg of the average weight (which would be 56-64 kg). In this data set, the average weight is 60 kg, and the standard deviation is 4 kg. Example – Calculating the Standard Deviation for Weight DataĪ standard deviation value would tell you how much the data set deviates from the mean of the data set.įor example, suppose you have a group of 50 people, and you are recording their weight (in kgs). ![]()
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