DEVELVE 
Easy to use Statistical software
STDEV
Main Help
Basic Statistics
Mean
n
Median
STDEV
Cp Cpk % out of tolerance
Min/Max
Compare with
Calculate Difference
Diff mean normally
Diff median not normally
Diff variation normally
Diff variation not normally
Normally test
Correlation
Regression
Kurtosis
Skewness
Proportions
Basic Statistics
Mean
n
Median
STDEV
Cp Cpk % out of tolerance
Min/Max
Compare with
Calculate Difference
Diff mean normally
Diff median not normally
Diff variation normally
Diff variation not normally
Normally test
Correlation
Regression
Kurtosis
Skewness
Proportions
Calculates the STDEV of the dataset. The STDEV is an indication of the variation of the data.
Interpretation
-
The bigger the STDEV the bigger the variation in the dataset.
Formula
95% confidence interval for STDEV
To get the Confidence interval click on the graph of the dataset and it will be visible in the graph popup.
Legend
n = n
=Means = STDEV
Example
The STDEV of samples in dataset A is 1.1136, this is visible in row STDEV of the result array.