Using such intervals communicates the uncertainty within the model introduced by the scatter of the data instead of using the regression line that makes the relationship appear far more deterministic than it really is.

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Now, a California judge has thrown that model into uncertainty.

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Uncertainty exists, and teachers are both teaching amidst the uncertainty and helping to create and refine the school model itself on the fly.

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The TTV model is always couched in terms of statistical uncertainty.

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The rough properties of this particle agree with the Standard Model prediction, but there is roughly 50% uncertainty in all the measurements of the largest couplings.

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The "holds" issued Wednesday show "how much uncertainty there is with Facebook's revenue-generation business model, " said Reena Aggarwal, professor of finance at Georgetown University's McDonough School of Business, who also said tough market conditions may have been a contributing factor.

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