Standard Deviation Calculator

Analysis Statistical Measurement for Variables

video tutorial

Calculate average, standard deviation, the sample size for several variables. 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 Enterafter each value.
Leaving empty cells is okay. The tool doesn't count empty cells or non-numeric cells.
Please delete unused columns.

Outliers:

N(Count):number of values
Mean:average
S:Sample Standard Deviation
S2:Sample Variance
σ:Population Standard Deviation
σ2:Population Variance
Skewness:Asymmetric level
normality pval:Shapiro Wilk test p-value
outliers:Tukey's fences method, k=1.5

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