Lines Matching refs:stdev
1986 # the variance or stdev. Or at least not much.
2116 # Test that stdev is, in fact, the square root of variance.
2227 self.func = statistics.stdev
2235 # Test that stdev is, in fact, the square root of variance.
2615 self.assertEqual(nd.stdev, 17)
2621 self.assertEqual(nd.stdev, 1)
2840 width = z * max(X.stdev, Y.stdev)
2907 self.assertEqual(X.stdev, 15)
2939 self.assertEqual(X.stdev, Y.stdev)
2943 self.assertEqual(X.stdev, Y.stdev)