Although having multiple rare recessive mutations is unusual, the probability of having any rare recessive disease is increased by consanguinity.
To test this expectation, the frequency of rule unusual patterns and probability of multiple occurrences per student are displayed in Fig. 1.
Iridium states that the collision was an "extremely unusual, very low-probability event".
Fig. 1 Frequency of unusual patterns (UP) and probability of multiple violations per student for (a) UP1, (b) UP2, (c) UP3, (d) UP4, and (e) UP5 Fig. 2 Frequency of multiple unusual patterns across 31 students (inclusion criteria: produced UP2 at least twice) as a percentage of all units completed.
(For the somewhat unusual situation where the probability of success is.9, the Robust Poisson method was generally less biased).
The fact that we didn't observe SNP in one of the three pairs of overlapping BACs is not that unusual given that the probability of sampling identical genomes with at least one of the 3 pairs of overlapping BACs is 33% (1-.875 1-.875
One could mandate that it is only unexpected events that initiate the reasoning engine (where "unusual" is defined by some probability threshold on observed activity).
Further, changes in the spatio-temporal shifts in precipitation pattern increase the probability of various unusual or extreme events affecting the livelihoods of regional societies and their interactions with the global economy (e.g., Henebry et al. 2013; Chen et al. 2015).
Attaran: We are dealing with something that has an unusual risk paradigm: a low probability of a very severe outcome.
As noted by Bender et al. (1995) the comparison of observed and expected numbers (as in calculating the standardized incidence ratios) when applied to populations known a priori to be unusual invalidates the laws of probability and renders resultant estimates meaningless.
