alturas_parte.py

heights   = ["high", "medium", "short"]
dist      = [0.2, 0.6, 0.2]
generator = position_generator(dist)

n = 10000
count = 0
high = 0
med = 0
low = 0

for x in xrange(n):
    simulation = heights[generator.next()] 
    count += 1
    if simulation == 'high':
        high += 1
    elif simulation == 'medium':
        med += 1
    elif simulation == 'short':
        low += 1     

print "Alta",  "\t", high * 1.0 / count
print "Media", "\t", med  * 1.0 / count
print "Baja",  "\t", low  * 1.0 / count