A bell curve is a symmetric curve centered around the mean, or average, of all the data points being measured. The width of a bell curve is determined by the standard deviation—68% of the data ...

Here’s a look at a couple of simple examples of data you might find on a bell curve: Employee performance tends to fall on a bell curve. Adequate employees make up the mean, while underperforming ...

A bell curve indicates that about 68% of the data lies within one standard deviation, about 95% of the data lies within two standard deviations, and about 99.7% of the data lies within three ...

If the total area under the bell curve adds up to 100%, then 68% of it lies between -1 and +1 standard deviation (SD), 95% between -2 and +2 SD, and 99.7% between -3 and +3 SD.

The bell curve model limits the quantity of people at the top and also reduces incentives to the highest rating. Given the arbitrary five-scale rating and the fact that most people are 2,3,4 rated ...

Height follows the bell curve in its distribution. Wealth does not: It follows an asymmetric, L-shaped pattern known as a "power law," where most values are below average and a few far above.

For decades, teachers, managers and parents have assumed that the performance of students and employees fits what's known as the bell curve — in most activities, we expect a few people to be ...