bell curve


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bell curve

n.
The typically symmetrical curve of a normal distribution, resembling the profile of a bell. Also called bell-shaped curve, normal curve.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

bell′ curve`


n.
a frequency distribution in statistics that resembles the outline of a bell when plotted on a graph. Also called bell-shaped curve.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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bell curve
graph showing the distribution of a set of test scores where the average grade was a C

bell curve

A symmetrical bell-shaped curve that represents the typical distribution and frequency of the values of a set of random data. It slopes downward from a point in the middle corresponding to the mean.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
This gap represents the space between those advanced manufacturing sites and the area under the bell curve that represents the state of the industry for most manufacturers.
In it the dean asked his professors to use a bell curve method for designing exams, which estimates that five per cent of students would get As, 15pc would get Bs, 60p would get Cs, 15pc would Ds and 5pc would get Fs.
For many years I've used the analogy of the Bell curve to describe the potential threats for which a student should be training.
Bivariate is not a Bavarian pastry, and Chi-square is not a fancy herbal tea, but you don't need a degree in statistics to understand bell curve distributions.
Well, let's start on the less intense end of the bell curve. Most Americans don't carry guns at all and manage not to get killed.
So has been the annual exercise of pinning people on the bell curve for appraisal.
"Many criticisms of The Bell Curve, most notably Charles Lane's thorough takedown in The New York Review of Books, have pointed out that Murray's attempts to link social inequality to genes are based on the work of explicitly racist scientists," according to (https://www.splcenter.org/fighting-hate/extremist-files/individual/charles-murray) Southern Poverty Law Center.
If one plotted out how many individual instances there were of each possible score, the shape would come out looking like a bell, which is why normal distribution is called a bell curve. A standard deviation calculates where on that normal curve one would expect a given score to fall.
The third edition adds sections on the bell curve and the van der Pol nonlinear equation.