Re: Bell shaped curves
- From: "Beliavsky" <beliavsky@xxxxxxx>
- Date: 14 Jan 2007 10:53:47 -0800
Stig Holmquist wrote:
The most common bell shaped curve is the normal or Gaussian but
not all data forming a symmetrical bell shaped curve are normal.
I wen to Google to search for other bell curves but found none
Other commonly-used families of symmetric unimodal distributions are
the Student t (which includes the Cauchy distribution mentioned by
another poster) and the exponential power distribution aka generalized
error distribution (GED). Both families nest the normal distribution,
and the GED also nests the Laplace aka double exponential distribution.
You can search for info on these.
..
Is there a book discussing other bell curves and how to find
their standard deviation from the mean?
I don't think this can be done. For the normal distribution and the
alternatives I mentioned, the mean and standard deviation are
separately specified parameters.
Btw the best newsgroup for your question was probably sci.stat.math.
.
- References:
- Bell shaped curves
- From: Stig Holmquist
- Bell shaped curves
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