Std Dev Formula. Thus the way we calculate standard deviation is very similar to the way we calculate variance. The standard deviation is calculated using the n 1 method.
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But hang on. Xi value of each data point. 9 2 4 5 7 3 6 5.
9 2 4 5 7 3 6 5.
Xi value of each data point. If data represents an entire population use the stdevp function. Sum 6 25 20 25 2 25 6 25 30 25 0 25 65 5. If your data represents the entire population then compute the standard deviation using stdevp.
