Select a jump at random with appropriate relative probabilities.

        Args:
            None

        Returns:
            (Jump): The randomly selected Jump.

def random( self ):
        """
        Select a jump at random with appropriate relative probabilities.

        Args:
            None

        Returns:
            (Jump): The randomly selected Jump.
        """
        j = np.searchsorted( self.cumulative_probabilities(), random.random() )
        return self.jumps[ j ]