So if you want to change the scale from Fahrenheit to Celsius in the weather app, here is how to do it. The following method is for Windows Consumer Preview and Release Preview.
When data seems to be gathered around a particular value. For example: for the values 2, 6, 7, 8, 8.5, 10, 15, there is a cluster around the value 8. See: Outlier.
However, the actual formula and definition of the geometric mean is that it is the n-th root of the product of n numbers, or: Geometric Mean = n-th root of (X 1)(X 2)...(X n) Where X 1, X 2, etc. represent the individual data points, and n is the total number of data points used in the calculation.