Investors usually consider the geometric mean a more accurate measure of portfolio performance than the arithmetic mean because it accounts for compounding. Learn more.

The simple definition of a mean is that of a numeric quantity which represents the center of a collection of numbers. Here the trick lies in defining the exact type of numeric collection, as beyond… ...

“Any place you really mean ‘arithmetic,’ it’s probably fine to use ‘math’ instead,” the good doctor answered. “For example, parents at the dinner table asking their child, ‘What ...

HORST ALZER, A NEW REFINEMENT OF THE ARITHMETIC MEAN-GEOMETRIC MEAN INEQUALITY, The Rocky Mountain Journal of Mathematics, Vol. 27, No. 3 (SUMMER 1997), pp. 663-667 ...

This monthly journal, published since 1900, is devoted entirely to research in pure and applied mathematics, and, in general, includes longer papers than those in the Proceedings of the American ...

When talking investment portfolios, the geometric mean is also sometimes referred to as compounded annual growth rate or time-weighted rate of return.

Well, our math guy, Keith Devlin, who is very good at math, tells Weekend Edition Saturday host Scott Simon that there's a reason elementary schools are teaching arithmetic in a new way.