>>> import random
>>> # never: from random import *
>>> 
>>> # add up 10 random numbers
>>> total = 0
>>> for i in range(10):
...     total += random.randrange(1,7) # includes 1, excludes 7
... 
>>> total
44
>>> for i in range(10):
...     total += random.randrange(1,7) # includes 1, excludes 7
... 
>>> total
78
>>> rolls = [random.randrange(1,7) for i in range(10)]
>>> rolls
[6, 1, 5, 2, 4, 5, 4, 5, 4, 4]
>>> rolls = [random.randrange(1,7) for i in range(10)]
>>> rolls
[5, 2, 6, 3, 5, 3, 3, 6, 6, 5]
>>> 
>>> import matplotlib.pyplot as plt
>>> plt.plot(range(10), rolls) # x-values, y-values
[<matplotlib.lines.Line2D object at 0x11c6d4640>]
>>> plt.show()
>>> plt.clf()
>>> plt.scatter(range(10), rolls) # x-values, y-values
<matplotlib.collections.PathCollection object at 0x11f317250>
>>> plt.show()
>>> 
>>> x_vals = range(10)
>>> import math
>>> y_vals = [math.exp(x) for x in x_vals]
>>> plt.plot(x_vals, y_vals)
[<matplotlib.lines.Line2D object at 0x1220cbf40>]
>>> 
>>> plt.show()