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Paul
Posts:
431
Registered:
2/23/10


Re: 2nd (raw?) moment of uniform PDF
Posted:
Feb 15, 2013 6:26 PM


On Feb 14, 8:38 pm, quasi <qu...@null.set> wrote: >Paul wrote: >>The papers states that the second moment of X~U(a,b) is: >> >> E(X^2) = ( b^3  a^3 ) / 3(ba) >> >>My own integration of x^2 from a to b yields (b^3a^3)/3. > > >Can anyone point out where Hauptmanns's extra normalization > >factor 1/(ba) comes from? > > The probability mass function is 1/(ba).
Doh! I don?t do this sort of thing nearly enough, and I?m trying to consume more advanced material.
Thanks!



