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Re: st: RE: RE: A math question
From
David Hoaglin <[email protected]>
To
[email protected]
Subject
Re: st: RE: RE: A math question
Date
Fri, 21 Dec 2012 10:52:36 -0500
The median is a function of a distribution. You did not specify the
distribution of x. If you explained the context for your question, we
might be able to shed better light.
David Hoaglin
On Fri, Dec 21, 2012 at 10:42 AM, CJ Lan <[email protected]> wrote:
> Al,
>
> I think the "median" is a function, just like the "mean" is a function, not just a number.
>
> BTW, the derivative of abs(x^3) should be 3*x*abs(x) because the derivative can be derived as
> abs(x^3)/(x^3)*(3*x^2) = 3*abs(x)*x^2/x = 3*x*abs(x).
>
> I wish others could shed a light too? Thx.
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