|Re: Statistical Bug?|
Message #5 Posted by James M. Prange on 2 Apr 2003, 3:01 a.m.,
in response to message #4 by hugh
My method has the advantage that when using it, one typically doesn't
need to enter so many digits. This can be especially important when
entering hundreds of data points.
On the other hand, your idea has the advantage that the user wouldn't
even need to be aware that the data was being adjusted. If I recall
correctly, many calculators keep track of only n, sum(x), and
sum(x2) for statistical functions. To implement your
suggestion, the additional requirements would be to keep track of
x1, adjust the data on every sum+ input, and adjust the
output for things like sum(x), sum(x2), mean, and total.
Seems to me that it should be feasible on many calculators, and the
extra calculations would be scarcely noticeable to the user.
Have you applied for a patent yet?