Guido sees the light: PEP 8 updated

[alister]

On Wed, 20 Apr 2016 01:50:00 +1000, Steven D'Aprano wrote:
> Anyone who has played (say) Dungeons and Dragons, or other role-playing
> games, will know that events with a probability of 1 in 20 occur very
> frequently. To be precise, they occur one time in twenty.
> 
Million to 1 chances happen 9 time out of Ten (T prachett - Varius 
Discworld books :-) )

> Even if the claimed results are correct, how strong is the effect?
> 
> (a) On average, Canadian students get 49.0% on a standard exam that
> Chinese students get 89.0% for.
> 
> (b) On average, Canadian students get 49.0% on a standard exam that
> Chinese students get 49.1% for.
> 
> The level of statistical significance is not related to the strength of
> the effect: we can be very confident of small effects, and weakly
> confident of large effects.





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