Author: Tim Mirabile
Date: 11:35:55 05/22/99
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On May 22, 1999 at 13:58:43, Peter Fendrich wrote: >D(P) is the rating difference that P indicates. That means that P indicates what >rating difference would be excpected with such a result. >It is possible to compute D(P) with the help of a Bell curve but the easy way is >a lookup table. In Excel 97 I use D(P)=NORMINV(P,0,200*SQRT(2)) and P(D)=NORMDIST(D,0,200*SQRT(2),TRUE) Where D is rating difference and P is percent score in decimal form.
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