def test_valid_cases_7(self):
        list = []
        for i in range(10000):
            list.append(i)

        self.assertAlmostEqual(standard_deviation(list), 2886.7512882131014)
        self.assertAlmostEqual(standard_error(list), 28.867512882131013)
    def test_valid_cases_8(self):
        list = []
        for i in range(9999999):
            list.append(i)

        self.assertAlmostEqual(standard_deviation(list), 2886751.0572728645)
        self.assertAlmostEqual(standard_error(list), 912.8708835335426)
 def test_valid_cases_1(self):
     self.assertAlmostEqual(standard_deviation([0]), 0)
     self.assertAlmostEqual(standard_error([0]), 0)
 def test_valid_cases_6(self):
     self.assertAlmostEqual(standard_deviation([0.0, -1.0, -2.0]),
                            0.816496580927726)
     self.assertAlmostEqual(standard_error([0.0, -1.0, -2.0]),
                            0.47140452079103173)