MEAN

Mean is the arithmetic average of all the values in a data set. If there are 'N'

elements of data (Xi) in the data set, then the mean ( X ) is given by

X = sum of Xi/N, where i = 1, 2, 3, ……..., n

GEOMETRIC MEAN

Geometric Mean (GM) is theoretically considered to be the best average in

measuring returns from securities. It is also considered more appropriate in

averaging ratios and percentages. It is defined as the nth root of the product

of 'N' items. If there are two items, square root is taken; if there are three

items, then cube root and so on.

Coming up Standard Deviation of Return......