SampleVariance Command
From GeoGebra Manual
- SampleVariance[ <List of Raw Data> ]
- Returns the sample variance of given list of numbers.
- Example:
SampleVariance[ {1, 2, 3, 4, 5} ]yields a = 2.5.
- SampleVariance[ <List of Numbers>, <List of Frequencies> ]
- Returns the sample variance of given list of numbers considering the frequencies.
- Example:
SampleVariance[ {1, 2, 3, 4, 5}, {3, 2, 4, 4, 1} ]yields a = 1.67.
Hint: If the list in the 
CAS View contains undefined variables, this command yields a formula for the sample variance.
- Example:
SampleVariance[ {x, y, z} ]yields \frac{1}{3} x^{2} - \frac{1}{3} x y - \frac{1}{3}xz + \frac{1}{3} y^{2} - \frac{1}{3} y z + \frac{1}{3} z^{2}.
