I imagine you have already caught this since you've fixed the code on GitHub, but the function definition for binomial on p. 79, you define it as binomial(n, p), and the next function (make_hist) won't work unless binomial's defined as binomial(p, n).
I imagine you have already caught this since you've fixed the code on GitHub, but the function definition for
binomialon p. 79, you define it asbinomial(n, p), and the next function (make_hist) won't work unlessbinomial's defined asbinomial(p, n).