Lines Matching full:variance
1817 # Mixin class holding common tests for variance and std dev.
1840 # All the items are identical, so variance should be exactly zero.
1848 # the variance or stdev. Or at least not much.
1874 # in UnivariateCommonMixin is that an earlier design had variance and
1883 # Tests for population variance.
1888 # Test the variance against an exact result for uniform data.
1895 # Test population variance with int data.
1901 # Test population variance with Fraction data.
1910 # Test population variance with Decimal data.
1920 # Tests for sample variance.
1922 self.func = statistics.variance
1930 # Test sample variance with int data.
1936 # Test sample variance with Fraction data.
1945 # Test sample variance with Decimal data.
1960 # Test that stdev is, in fact, the square root of variance.
1977 # Test that stdev is, in fact, the square root of variance.
1979 expected = math.sqrt(statistics.variance(data))
