Fig. 1
Upper panel: cumulative histograms of |ri/σi| for SARG data. The diamonds show the observed data, and the solid curve shows the result expected for a Gaussian-distributed noise. Lower panel: ratio f of the observed to the expected histograms, indicating the fraction of “good” data points. An excess of outliers is evident for |ri/σi| ≳ 1.5.
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