normal weight

the weight calculated for every quote either during round or at its closing and based on normal distribution function N( 0, 1 ). Actual formula is following:

2 * NORMINV( - [ discrepancy ] ), where

• NORMINV is inverse normal distribution function (cumulative integral of probability density), and

• discrepancy is taken as negative value.

It shows stochastic proximity of the quote rate to observed exchange rate