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Galton's experimental setup "Standard eugenics scheme of descent" – early application of Galton's insight [1]. In statistics, regression toward the mean (also called regression to the mean, reversion to the mean, and reversion to mediocrity) is the phenomenon where if one sample of a random variable is extreme, the next sampling of the same random variable is likely to be closer to its mean.
In flamboyant fashion, Kaiser proposed that a KMO > 0.9 was marvelous, in the 0.80s, meritorious, in the 0.70s, middling, in the 0.60s, mediocre, in the 0.50s, miserable, and less than 0.5 would be unacceptable. [3] In general, KMO values between 0.8 and 1 indicate the sampling is adequate. KMO values less than 0.6 indicate the sampling is not ...
The Drake equation results in a summary of the factors affecting the likelihood that we might detect radio-communication from intelligent extraterrestrial life. [ 2 ] [ 6 ] [ 17 ] The last three parameters, f i , f c , and L , are not known and are very difficult to estimate, with values ranging over many orders of magnitude (see § Criticism ).
But less than 2 minutes can save you more than $600/year. ... Have the purchase price be so attractive that even a mediocre sale gives good results.” ...
The cover of The Peter Principle (1970 Pan Books edition). The Peter principle is a concept in management developed by Laurence J. Peter which observes that people in a hierarchy tend to rise to "a level of respective incompetence": employees are promoted based on their success in previous jobs until they reach a level at which they are no longer competent, as skills in one job do not ...
Less than two years later, the 35-year-old Dieckman was one of 87 passengers who perished in the crash of American Airlines Flight 1. [12] October 31, 1960: Formula One world champion Jack Brabham appears on the cover. For the following season, Brabham found himself outclassed by a newer generation of cars, [13] as well retiring from a number ...
Brady went on Stephen A. Smith's YouTube show recently and bemoaned the quality of play in the NFL, which he was playing in less than 365 days ago. "I think there’s a lot of mediocrity in today ...
However, a unique control number on each ballot allows the answers to be reunited with a corresponding questionnaire that contains less sensitive questions. [ 26 ] [ 27 ] The BBM has been used successfully to obtain estimates of sensitive sexual behaviours during an HIV prevention study, [ 26 ] as well as illegal environmental resource use.