Tuesday, November 17, 2009

Mathematically, It's Possible

Can we all finish dead even? Or even all at 6-6?

I looked at our schedules and it is possible for all teams to 6-6 but (Sidekick check the math) it's approx a 1/1024 chance of that happening (Or only 1 possible route with 2^10 games). That computes to 0.1% chance.

As for all of us ending up 7-7, well that's a little more complicated. There are 1,048,576 possible combos of our remaining games. There are 108 scenarios where all 10 teams end up 7-7...total likelihood is 0.01%, assuming every game's outcome is a coin flip.

6 comments:

Rear Admir0l said...

All of us ending up 8 & 8 is beyond the possible of possibility!
That would mean that everyone makes the playoffs and goes 1 & 1.

Tray Deee said...

Edit made...keep getting Fantasy and real life confused. Same thing happens at work.

The Sidekick said...

The incestuousness of the schedules made my head swim, so here's how I approached it (which is wrong, but whatev); I'm also assuming that each match up is 50/50 going down the stretch.

AJ and Pooler would both need to go 3-1 over the final 4 (actually AJ needs to go 1-3, but it's the same thing in terms of the calculations).

There are 16 possible outcomes for their final 4 games, and 4 of them have them achieving the 3-1 mark. That's a 25% chance of success.

The rest of us need to go 2-2 over the last four to end up tied. Again, 16 outcomes; this time there are 6 successes in there, giving us each a 37.5% chance.

This is where my math falls apart: assuming they are independent events (NOT!), then the probability is:

.25^2*.375^8=.0000244

The issue is that the interconnectedness of the schedules makes it a nightmare to look at all the possibilities and figure out how many "successes" are contained therein.

By the way, I'm supposed to be helping a student right now, but instead I'm over here trying to work this out.

Tray Deee said...

Well, I'm supposed to be serving the state of North Carolina so...

yeah, I don't think it's possible/practical to do anything past two weeks into future by hand. I put them into SAS and watched the numbers grow exponentially week-by-week. By 5 weeks into the future, there's over 33 million combos.

Rear Admir0l said...

BTW... I need you to schedule some time in the future to teach the Wee Man chess.

Tray Deee said...

Shall we limit it to chess? Or are there more geek-a-riffic activities that I've got experience with? Boy Scouts, Science Club, Math team? I got geek in spades.