(require (planet "geometric.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 20 1 20)))
  (do ((i 0 (+ i 1)))
      ((> i 20) (void))
    (histogram-accumulate! h i (geometric-pdf i .5)))
  (histogram-plot h "Geometric Distribution"))