datadataeverywhere comments on Solve Psy-Kosh's non-anthropic problem - Less Wrong
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If the decision of a group decider is "1/9th as important", then what's the correct way to calculate the expected benefit of saying "yea" in the second case? Do you have in mind something like 0.9*1000/9 + 0.1*100/1 = 110? This doesn't look right :-(
I think my answer is actually equivalent to Nornagest's.
The obvious answer is that the factors you divide by are (0.9 / 0.5) and (0.1 / 0.5), which results in the same expected value as the pre-arranged calculation.