1.   Secondly, estimate the magnitude of the wage gap, that is the magnitude of.

2.   As for estimating the magnitude of fraud, the methodology used is suspect.

3.   To estimate the magnitude of tax evasion in Argentina, Scher of Fitch did some simple arithmetic.

4.   The U.S. Geologic Survey in Golden, Colo., confirmed the quake, but could not immediately estimate its magnitude.