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Asked by: Zi Gutschke
business and finance bankruptcyWhy is a normal distribution curve bell shaped?
Accordingly, are all bell shaped curves normal distributions?
All normal distributions are symmetric and have bell-shaped density curves with a single peak. To speak specifically of any normal distribution, two quantities have to be specified: the mean , where the peak of the density occurs, and the standard deviation , which indicates the spread or girth of the bell curve.
Also to know is, what does a bell shaped curve mean?
bell curve. 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.
The Bell Curve system of performance appraisal intimidates HR managers as much as employees. For a long time, this forced ranking system has remained a topic of debate, but companies still continue to use it.