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--- In amibroker@xxxxxxxxxxxxxxx, "jtelang" <jtelang@xxxx> wrote:
> Hi Dimitris,
>
> A bit confused about couple of things here... Hope you can clarify.
>
> 1. BBands are calculated as standard deviation, so by definition, 2
> times BBands is supposed to capture 95% of the values over periods
> specified.
No. 95% of the values in a *Gaussian population* lie within 1.96 SDs
of the *population* mean. First, the population isn't Gaussian.
Second, we're only dealing with (small) *samples* from the
population.
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