STATISTICAL TECHNIQUES AND TOOLS
REGRESSION
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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R A Fischer
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Sir Francis Galton
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Karl Pearson
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None of these
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Detailed explanation-1: -Sir Francis Galton (1885) introduced the idea of “regression” to the research community in a study examining the relationship of fathers’ and sons’ heights. In his study he observed that sons do not tend toward their fathers’ heights but instead “regress to” the mean of the population.
Detailed explanation-2: -The term “regression” was used by Francis Galton in his 1886 paper “Regression towards mediocrity in hereditary stature".
Detailed explanation-3: -Sir Francis Galton was a British science writer and amateur researcher of the late nineteenth century. He contributed greatly to the fields of statistics, experimental psychology and biometry. In the history of biology, Galton is widely regarded as the originator of the early twentieth century eugenics movement.
Detailed explanation-4: -The notion of regression to the mean was first worked out by Sir Francis Galton. The rule goes that, in any series with complex phenomena that are dependent on many variables, where chance is involved, extreme outcomes tend to be followed by more moderate ones.