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    Re: Averaging
    From: Fred Hebard
    Date: 2004 Oct 7, 23:34 -0400

    On Oct 7, 2004, at 12:45 AM, Alexandre Eremenko wrote:
    
    > Many manuals advise to take several sights
    > in short sequence and then to average the result.
    > and to reduce the average as one sight.
    > (Chauvenet recommends at most 6, Russian manuals 3-5).
    > The purpose is to increase accuracy,
    > and, probably more importantly, to reject the sights
    > with an evident "human error".
    >
    > Alex.
    
    Alex,
    
    Your post certainly generated a great thread.
    
    With 5 or 6 reps, one _slightly_ bad sight wouldn't throw off the
    average very much, so I'm not sure that rejection is necessary.  An
    _extremely_ bad sight would throw off the average; it probably also
    would be obvious on inspection of the raw data, so that graphing might
    not be needed to detect it.
    
    Fred
    
    
    

       
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