comment on

The rand function is supposed to be a "Pseudorandom number generator".

And the requirements for PRNG's are mathematically defined.

One of them says, that for every range epsilon ε around the expected average P(E) you can find a minimum set size N such that the actual average will always be within that range.

That's math-speak for "the bigger the closer".

And that's very similar to your test, with the exception that there is no guaranty about this set size 10000. Could be less, could be more.

From my tests it's very likely to hold for 10000 tho, but you can only be "sure"° after checking the implementation.

HTH! :)

Cheers Rolf
_{(addicted to the Perl Programming Language :)

Wikisyntax for the Monastery}

°) DISCLAIMER: security is relative if it comes to software and it's implementation

In reply to Re: is rand random enough to simulate dice rolls? (math definition) by LanX
in thread is rand random enough to simulate dice rolls? by Discipulus

Are you posting in the right place? Check out Where do I post X? to know for sure.
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
Want more info? How to link or How to display code and escape characters are good places to start.


"be consistent"
	PerlMonks