def babytest(self, families, iterations):
        families = int(families)
        iterations = int(iterations)
        m=0.0
        f=0.0
        mt=0.0
        ft=0.0
        for counter in range(iterations):
            for i in range(families):
                s=0
                while not s:
                    if randrange(1, 3) != 1:
                        m=m+1
                        s=1
                    else:
                        f=f+1
        mt = float(m)/iterations
        ft = float(f)/iterations
        return "%f boys %f girls" % (mt, ft)