Before revision: Once we found the WCD, we can (approximately) calculate from it the yield by using the error function (which is related to the cummulative density function of the normal Gaussian distribution) or by using look-up tables (e.g.
After revision: Once we found the WCD, we can (approximately) calculate from it the yield by using the error function (which is related to the cummulative distribution function of the normal Gaussian distribution) or by using look-up tables (e.g.