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Date: 10 February 2012: Source: Bell curve taken from File:Normal Distribution PDF.svg (Public Domain): Author: Mikael Häggström.. When using this image in external works, it may be cited as:
In the bottom-right graph, smoothed profiles of the previous graphs are rescaled, superimposed and compared with a normal distribution (black curve). Main article: Central limit theorem The central limit theorem states that under certain (fairly common) conditions, the sum of many random variables will have an approximately normal distribution.
Retrieved from "https://en.wikipedia.org/w/index.php?title=The_Global_Bell_Curve&oldid=1096127736"
The term "curve" refers to the bell curve, the graphical representation of the probability density of the normal distribution, but this method can be used to achieve any desired distribution of the grades – for example, a uniform distribution.
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The process is often illustrated graphically as a bell-shaped curve which increases and then decreases with higher levels of arousal. The original paper (a study of the Japanese house mouse , described as the "dancing mouse") was only referenced ten times over the next half century, yet in four of the citing articles, these findings were ...