During the 1926-2013 period the geometric mean return on small-firm stocks was 11.82%
The geometric mean is the average growth rate of an investment calculated by multiplying n variables by the nth -root. In other words, it is the average return on an investment over time, and it is a metric used to assess the performance of a single investment or a portfolio of investments.
The geometric mean also goes by the names geometric average, compounded annual growth rate, and time-weighted rate of return. It is the average return rate for a set of values calculated using the terms' products.
In other words, the geometric average multiplies several values (the return rates) and raises them to the 1/nth power.
To learn more about geometric mean using the given link
https://brainly.com/question/13016486
#SPJ4
