The Trial:Finding a parking spot in the mall right in front of the theater on a Sunday. I'm going there 5 times. ("Success" means you found a spot right in front of the theater.)

The Theoretical Percentage of Success each trial:20% (that's my guess of finding a parking spot in front of the theater on any given Sunday.)

What's the percentage of "Success" all 5 times? From Table A-1, n=5 (total trials), p=0.2 (theoretical probability), x=5 (how many times I want to see it happen), the probability is 0.00032 - which means that my chance of finding a spot to park in front of the theater on a Sunday all five times is 3/10000.

• Design a second experiment with a cumulative outcome - for example, using the parking example above, what's my chance of finding a spot to park in front of the theater on a Sunday at least three out of five times? Demonstrate how you would calculate that probability.