Bell Curve and Investing The assumption of a normal distribution is fundamental in many financial pricing models used to predict future returns of a security.

While the curve itself still represents normal distribution, the statistical outcomes outside of the norm are actually higher, called “excess kurtosis.” Another limitation of bell curves is the ...

The market demand curve is a function that calculates the estimated demand for a product based on the product's hypothetical price. The normal curve, on the other hand, is a family of symmetric ...

When business researchers analyze data, they often rely on assumptions to help make sense of what they find. But like anyone else, they can run into a whole lot of trouble if those assumptions turn ...

A normal curve is a graph with a smooth, symmetrical, bell-shape. The highest point of the bell represents the mean, which is the arithmetic average value of the data set.

Suppose that you are teaching a class on statistics, and your distribution of scores is normal - and the mean (average) score is 80 (of a possible 100). So that means that the lion’s share of ...

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 very good ...

In addition to the Pilot and more than a dozen national magazines, I have worked for four newspapers: the New York Times, Los Angeles Times, Christian Science Monitor and National Observer (the ...

Income inequality has been growing in the U.S. for decades. One way to look at it, to see how non-normal the distribution of income has become, is to consider a basic concept in statistics.