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About LinkBacksSo how do you solve this one? Thanks
So how do you solve this one? Thanks
Do we really have to measure the shape of the gauss curve or some crap like that?
Knock Out!
can you post it for the rest of us?
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He has already posted the question ! The attachment is the same image!Originally Posted by DWarrior
All I see is his first post:
and second post:
I can't view the .bmpDo we really have to measure the shape of the gauss curve or some crap like that?
Sorry DWarrior. But the image in his post was visible to me. So I thought it could be viewed by all. Anyway, I have posted it now.
Yeah, that is a tough one, can't really tell if that part is convex or concave without using the formula or having a stats chart.
True. I too need to revise my statistical concepts!
So I found the necessary property:
inflection points of a normal curve occur at +/- 1 SD away from the mean.
If you apply the 68/95/99.5 rule, we know the inflection point occurs at 34%, which is after the 30% mark, meaning the curve is bulging upwards at 30%.
450 is half-way between the two y-values, while 30% is half-way between the two x-values. The curvature is exaggerated for emphasis:
k<30, so B
Last edited by DWarrior; 11-05-2007 at 06:41 PM.
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