Making the world better, one answer at a time. the last eruption was in Iceland 2010.It also happened to cause airplane traffic and shut down multiple flights near western Europe, eastern north America, and north west Asia.
biased statistic. (statistics). A statistic whose expected value, as obtained from a random sampling, does not equal the parameter or quantity being estimated. 1  Facebook. 2  Twitter.
8.2.1 âBiasâ and ârisk of biasâ. A bias is a systematic error, or deviation from the truth, in results or inferences. Biases can operate in either direction: different biases can lead to underestimation or overestimation of the true intervention effect.ecause the results of a study may in fact be unbiased despite a methodological flaw, it is more appropriate to consider risk of bias. Differences in risks of bias can help explain variation in the results of the studies included in a systematic review (i.e. can explain heterogeneity of results).