Originally posted on 03/18/2011:
look pal lets do some basic binomial probability on what is now an 8-4 run:
The probability that he goes 8-4 at some point if he hits 50% in the long term is as follows.
(12 choose 8)*.5^12
= .12
Meaning, for every 100 12-game series a 50% gambler has, 12 of those series of 12 (follow me here) will turn out to be 8 wins and 4 losses. That is a pretty common figure. I would not simply back this guy because he went 8-4 once
Also,
If someone wins bets at a 50% clip, and lets say this guy plays 400 plays an NBA season, we can expect a streak of wins to be:
.5^k = 1/400
k = 8.64
So, we can EXPECT a schmuck who hits half his bets to hit 8 in a row over 400 plays.