(require (planet "binomial.ss" ("williams" "science.plt" 2 0)
                 "random-distributions"))
(require (planet "histogram-with-graphics.ss"
                 ("williams" "science.plt" 2 0)))

(let ((h (make-histogram-with-ranges-uniform 21 0 20)))
  (do ((i 0 (+ i 1)))
      ((> i 20) (void))
    (histogram-accumulate! h i (binomial-pdf i .5 20)))
  (histogram-plot h "Binomial Distribution"))