Statistics. Bell curves model real-world data such as classroom test results and employee performance reviews in an organization. Science. The bell curve graph is useful for repeated measurement ...

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 ...

“It’s a bell curve,” she quickly summarized, perhaps inferring that I should limit my judgment as it was clear that age-wise I was surfing the downside of the hill.

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 ...

The bell curve's parabolic figure cuts in either direction from e at a seemingly equal pace, meaning e could, and perhaps should, be considered as representing a 50% tax rate.

American economist Arthur Laffer developed a bell-curve analysis in 1974 known as the Laffer curve. The Laffer curve shows the relationship between tax rates and total tax revenue.