def METHOD_NAME(self):
    """Test binary input without a 0b prefix and hexadecimal output."""
    in_probs = {"0": 2 / 7, "1": 1 / 7, "10": 1 / 7, "11": 1 / 7, "100": 2 / 7}
    probs = ProbDistribution(in_probs)
    expected = {"0x0": 2 / 7, "0x1": 1 / 7, "0x2": 1 / 7, "0x3": 1 / 7, "0x4": 2 / 7}
    self.assertEqual(expected, probs.hex_probabilities())