On 03/07/14 20:58, Fabien COELHO wrote:


Hello Gavin,

 decile percents: 69.9% 21.0% 6.3% 1.9% 0.6% 0.2% 0.1% 0.0% 0.0% 0.0%
 probability of fist/last percent of the range: 11.3% 0.0%

I would suggest that probabilities should NEVER be expressed in percentages! As a percentage probability looks weird, and is never used for serious statistical work - in my experience at least.

I think probabilities should be expressed in the range 0 ... 1 - i.e. 0.35 rather than 35%.

I could agree about the mathematics, but ISTM that "11.5%" is more readable and intuitive than "0.115".

I could change "probability" and replace it with "frequency" or maybe "occurence", what would you think about that?


You may well be hitting a situation, where you meet opposition whatever you do! :-)

"frequency" implies a positive integer (though "relative frequency" might be okay) - and if you use "occurrence", someone else is bound to complain...

Though, I'd opt for "relative frequency", if you can't use values in the range 0 ... 1 for probabilities, if %'s are used - so long as it does not generate a flame war.

I suspect it may not be worth the grief to change.


Cheers,
Gavin




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