第49页 Heads or dishes

Three lessons:
1. A coin has no memory!
2. Don't confuse predictions with results
If you only play a game once or twice, then the results might be very different from your predictions. However if you play lots of times, you should find that things "average out" and overal you get what you expected
3. Expecting to get 5 heads and 5 tails. 
You are actually more likely not to get 5 heads and 5 tails! If I started to toss the coin again ten times, what are the exact chances of getting five heads and five tails" The answer to that is 24.61%
Pascal tiragle, C^5_10/2^10