def MakePmfFromItems(t, name='<STR_LIT>'):
pmf = Pmf(dict(t), name)<EOL>pmf.Normalize()<EOL>return pmf<EOL>
Makes a PMF from a sequence of value-probability pairs

    Args:
        t: sequence of value-probability pairs
        name: string name for this PMF

    Returns:
        Pmf object