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The Crawfish Boxes

The Astros have a 53% chance of winning 83 games in 2009

I was inspired to get fancy by BtB and plugged the Astros WAR Projection Project into a binomial distribution function to determine what the probability was that the Astros actually hit the mark our input projected.  The actual probability was .531, so I understated the probability, slightly, in the title.

I know this isn't entirely accurate, but I thought it would be fun none the less.

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Comments

::head explodes::

When statistical analysis goes too far….

Joe Morgan voice:

YOU DON’T PLAY BASEBALL WITH CALCULATORS, DAMMIT!

Seriously though, good job. Can you figure out what the probability is for 90 wins?

I got 18%, using DQ's sheet.

Here’s the total:
115 0.02
110 0.08
105 0.69
100 2.22
95 9.09
90 18.7
85 41.2
80 58.8
75 81.3
70 90.9
65 97.7
60 99.3
55 99.9

Hmmmmm

I wonder what i did terribly wrong?

Nevermind

Like a jackass I put in the cumulative probability. I got 6.26% (I still can’t figure out where the disconnect is, I used 83, 162, .512345679, and 1).

I should really not be blogging at 5:00 AM at the peak of insomnia.

My formula is:

=100-(100*BINOMDIST(O23/2,81,0.51234568,1))

With O23 set to 83, or whatever wins total you want.

So.. there is a chance we can win 115 games?

Sweet!

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