Standard Deviation Calculator

Analysis Statistical Measurement for Variables

Outliers:

video tutorial

Calculate average, standard deviation, sample size for several varaibles. Present histogram chart and average range chart

Parameters

N - Number of values
Mean- The average
S- Sample Standard Deviation, if the list of values you entered is only a sample from the entire population, this is the best estimation for the Population Standard Deviation
S2- Sample variance, if the list of values you entered is only a sample from the entire population, this is the best estimation for the Population Variance
σ- Population Standard Deviation, if the list of values you entered is the entire population, this is the exact Standard deviation
σ2- Population Variance, if the list of values you entered is the entire population, this is the exact Variance

Statistic Data

α: Significant level (0-1), maximum chance allowed rejecting H0 while H0 is correcrt (Type1 Error)

Header - You may change groups' name to the real names.
Data - When entering data, press Enter after each value
It is okay to leave empty cells, empty cells or non numeric cells won't be counted.
If you don't use column just delete it.

N(Count)number of values
Meanaverage
SSample Standard Deviation
S2Sample Variance
σPopulation Standard Deviation
σ2Population Variance
SkewnessAsymmetric level
normality pvalShapiro Wilk test result
outliersTukey's fences method, k=1.5

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