This complements other approaches such as neuroimaging activation studies by focussing on measures of functional connectivity, and by doing this when no external stimuli are applied, which may enable the inherent functional relations between brain areas to be investigated, as the system may be more largely influenced by statistical fluctuations and noise in the system (Deco et al., 2013 a, b ).
Today, however, the same two teams reported that, with more data, those signs appear slightly weaker, suggesting that they could be a statistical fluctuation in the "background" produced by decays of familiar particles.
Such small differences may be caused by statistical fluctuations and small approximations in attenuation correction used in reconstructions of simulated tomographic data (voxelized attenuation maps were used in reconstructions, while in GATE analytical shapes are used).
The concept of increasing sampling volume was also confirmed using synchrotron X-ray source, where the statistical fluctuation in X-ray strain could be further reduced by performing the measurement at all azimuthal direction.
Three sigma represents about one in 700 likelihood that a "bump" in the data is down to some statistical fluctuation, in the absence of a Higgs.
This means there is roughly a 1 in 1,000 chance that the result is attributable to some statistical fluctuation in the data.
Thus, our data imply that the previously reported associations between Y-chromosomal lineages and a predisposition to, or protection against, prostate cancer might be explained by statistical fluctuations, or by genetic effects that are seen only in some environments.
This is particularly true in design studies, where the effects of small changes in the model may be masked by statistical fluctuations unless prohibitively long simulation times are used.
Strongly influenced by statistical fluctuations, the combination coefficients are highly irregular.
In effect, that team sees too many signs of possible Higgses, at various masses, and that has some physicists worrying that even the cluster of hints that coincide may be a mirage created by statistical fluctuations.
