A bell curve is a graph depicting the normal distribution, which has a shape reminiscent of a bell. The top of the curve shows the mean, mode, and median of the data collected.

Statistics shows data is often grouped on a bell curve distribution, but a business study reveals that extreme outliers can ...

The bell curve has been measuring human performance since the 1940s. Now new research indicates it’s dead wrong. Instead, the world is filled with a few superstars, then the rest of us.