Simulation of event described in problem 20 on page 55 of Sheldon Ross' A First Course in Probability (9e).
This is for personal understanding of a problem introduced in Math 180A at UCSD.
Example usage and output:
(urn_env) Andrews-MBP:urn andrew$ python Urn.py
Blue: 32165
Red: 67835
P(red taken first): 0.32165