it should be the same values that are picked more or less often than expected

Agreed.

abs($stats{$_} - 3 * $n)/$n ought to converge towards zero. And that does.

Agreed. My test is broken. Using absolute variances instead of a percentages, hides that they actually do converge.

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.
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In reply to Re^10: Array problem by BrowserUk
in thread Array problem by Anonymous Monk

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