Method test_compare_to_variance

Lib/test/test_statistics.py:2103–2107

(self)

        self.func = statistics.pstdev

    def test_compare_to_variance(self):
        # Test that stdev is, in fact, the square root of variance.
        data = [random.uniform(-17, 24) for _ in range(1000)]
        expected = math.sqrt(statistics.pvariance(data))
        self.assertEqual(self.func(data), expected)

    def test_center_not_at_mean(self):
        # See issue: 40855