Limiting form of the Polya distribution. If no, p0, y 0 so that np, ny p, then for fixed n -> P()()() = (2p+ m = 1) ( I + Verify this and show that for fixed 2, p the terms on the right add to unity. (The right side represents the so-called negative binomial distribution; cf. VI, 8, and problem 37 in VI, 9.)