Average Deviation

The average deviation is the average of the difference between the absolute values of data points and the mean.

Population Mean Deviation (MD)

Sample Mean Deviation (MD)

Where

= Population Mean

 = Sample Mean

 N   = number of data values for a population

n    = number of data values for a sample

x1   = ith data value

See Also

Data Statistics

95% and 99% Confidence Interval for the Mean

Coefficient of Kurtosis

Coefficient of Skewness

Coefficient of Variation

Critical Value of K-S Statistic at 90%, 95%, and 99% Significance Level

Kolmogorov-Smirnov Goodness of Fit Statistic for Normal Distribution

Mean

Standard Deviation

Standard Error of the Mean

Statistics References

Variance