The first rule of financial analysis is to separate the two decisions.

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The judge declined to invalidate the soda rule based on those precedents, since a key prong of the analysis is whether the rule required expertise to be drafted.

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Various industry lobbies and GOP Congressmen demanded that the SEC do a cost-benefit analysis on the rule.

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It is also always harder to rule out that results from this kind of after-the-fact analysis are not due to chance.

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But Scott Zeger, the head of the department of biostatistics at Johns Hopkins, who performed the statistical analysis in the study, points out that clustered sampling is the rule rather than the exception in public-health studies, and that the patterns of deaths caused by epidemics are also very variable by location.

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The other Dark Social though is the fallibility of sentiment analysis and the question we have to ask is whether the 20% rule is at all appropriate now that people communicate in small bits of text rather than in blogs.

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The analysis did not address water contamination, which at the time would have been avoided, since the EPA rule remained in force.

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