Given the following set of data--value picked;frequency picked;percentage of total--is there anything that can meaningfully be derived from it about the picking process? 

c:\test>test.pl
 10 :  39663 (3.966%) ####
 20 :  41281 (4.128%) ####
 30 :  43552 (4.355%) ####
 40 :  46839 (4.684%) ####
 50 :  50217 (5.022%) #####
 60 :  53097 (5.310%) #####
 70 :  57457 (5.746%) #####
 80 :  61963 (6.196%) ######
 90 :  68065 (6.806%) ######
100 :  74738 (7.474%) #######
110 :  68005 (6.801%) ######
120 :  62216 (6.222%) ######
130 :  57352 (5.735%) #####
140 :  53747 (5.375%) #####
150 :  49963 (4.996%) ####
160 :  46435 (4.644%) ####
170 :  44099 (4.410%) ####
180 :  41758 (4.176%) ####
190 :  39553 (3.955%) ####

[download]

It obviously isn't a straight random pick otherwise the distribution would be more even. It's also not quite a classic bell curve.

The process that produces this distribution is random (ie. it uses rand()), but it's more complicated than just $pick = $n[ rand @n ];.

The thing I'm trying to resolve is why is it more complicated? There is a biased towards picking the median value; but is that bias significant?

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to [OT]: Statistical significance? by BrowserUk

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