Re: area under the curve

[Jay Warner]

Almost by definition, if it is skewed enough to be notable, it is too skewed to force into a symmetric z table (which is a Normal dist.) Not to be facetious, but how close is 'close enough'? If you are lucky enough to find some sort of transformation that brings it back to a Normal, then.... but you didn't say that. Jay Melady Preece wrote: A student wants to know how one can calculate the area under the curve for skewed distributions.  Can someone give me an answer about when a distribution is too skewed to use the z table? Melady -- Jay Warner Principal Scientist Warner Consulting, Inc. 4444 North Green Bay Road Racine, WI 53404-1216 USA Ph: (262) 634-9100 FAX: (262) 681-1133 email: [EMAIL PROTECTED] web: http://www.a2q.com The A2Q Method (tm) -- What do you want to improve today?