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somervta comments on Open Thread, October 20 - 26, 2013 - Less Wrong Discussion

2 Post author: Adele_L 21 October 2013 03:11AM

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Comment author: somervta 29 October 2013 06:47:45AM 0 points [-]

chance of losing each bet: 0.75 * 0.58 * 0.50 * 0.3 = >0.07

don't you mean chance of losing every bet?

If so, no way in hell those are conditionally independent. If not, what did you mean?

Comment author: gwern 29 October 2013 05:27:26PM 1 point [-]

don't you mean chance of losing every bet?

Yes.

If so, no way in hell those are conditionally independent.

Of course they are not conditionally independent, that's why I gave it as a lower bound.

Specifically, I think we can agree that whatever the exact relationships, the failure of one bet will increase the chance of failure of all the others: if the 6-month sheep bet fails, then the 12-month becomes more likely to fail, and to a smaller degree, the BMR ones become more likely to fail. And not the other way around. Hence independence is the best-case scenario, and so it's the lower bound, and that's why I wrote ">10%".

Comment author: somervta 29 October 2013 06:41:58PM 0 points [-]

Ah, I see. I was confused by the '=' sign.