bell curve definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
Statistics a curve resembling the outline of a flared bell, usually representing a normal distribution
bell curve definition by American Heritage Dictionary
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
or bell-shaped curvenoun
The symmetrical curve of a normal distribution. Also called normal curve.
bell curve - Science Definition
A symmetrical bell-shaped curve that represents the distribution of values, frequencies, or probabilities of a set of data. It slopes downward from a point in the middle corresponding to the mean value, or the maximum probability. Data that reflect the aggregate outcome of large numbers of unrelated events tend to result in bell curve distributions. ♦ The gaussian or normal distribution is a mathematically well-defined bell curve used in statistics and in science generally.
graph showing the distribution of a set of test scores where the average grade is a C
Variant of bell-shaped curve