from matplotlib import pyplot
from random import random
from math import floor

def TRACER_SEGMENT(x1, y1, x2, y2) :
	pyplot.plot([x1,x2], [y1,y2])

issue = [0]*19
for i in range(1, 100000+1) :
	somme=floor(6*random()+1)+floor(6*random()+1)+floor(6*random()+1)
	somme = int(somme)
	issue[somme]=issue[somme]+1
for i in range(3, 18+1) :
	propor = issue[i]/1000.0
	print "i : ", i
	print ' points -> '
	print "propor : ", propor
	print ' % des cas observés'
	TRACER_SEGMENT(i,0,i,propor)
pyplot.show()