def test_mean_std_typical(self):
mean, std = mean_std([5, 7, 8, 6])
self.assertEqual(mean, 6.5)
self.assertEqual(round(std, 5), 1.11803)
mean, std = mean_std([5, 7, 8, 6], pop=False)
self.assertEqual(mean, 6.5)
self.assertEqual(round(std, 5), 1.29099)
def test_mean_std_typical(self): mean, std = mean_std([5, 7, 8, 6]) self.assertEqual(mean, 6.5) self.assertEqual(round(std, 5), 1.11803) mean, std = mean_std([5, 7, 8, 6], pop=False) self.assertEqual(mean, 6.5) self.assertEqual(round(std, 5), 1.29099)
def test_mean_std_same(self):
self.assertEqual(mean_std([2, 2, 2, 2]), (2, 0))
self.assertEqual(mean_std([2, 2, 2, 2], pop=False), (8 / 3, 0))
def test_mean_std_single(self):
self.assertEqual(mean_std([1]), (1, 0))
def test_mean_std_same(self): self.assertEqual(mean_std([2, 2, 2, 2]), (2, 0)) self.assertEqual(mean_std([2, 2, 2, 2], pop=False), (8/3, 0))
def test_mean_std_single(self): self.assertEqual(mean_std([1]), (1, 0))