Beefy Boxes and Bandwidth Generously Provided by pair Networks
Clear questions and runnable code
get the best and fastest answer
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??

A simple test:

my $sum = 0; for( 1..10_000_000 ) { $sum++ if coin_toss() eq 'heads'; } print $sum;

The result I got was 5,000,938, meaning heads happened 50.01% of the time. Seems pretty reasonable.

Most people's perceptions of randomness are notoriously faulty. For example, they seriously underestimate the number of times repeated numbers will appear in a sequence.

One suggestion: I think it is clearer to use int() to specify that you want a random integer:

my $index = int rand @coin; return $coin[ $index ];

As your code is written, you are using a floating point number as the array index. This works (because it is converted to integer), but it is a little unusual. You wouldn't write  $array[1.5]



When's the last time you used duct tape on a duct? --Larry Wall

In reply to Re: Is this really random? by ColonelPanic
in thread Is this really random? by dr.jekyllandme

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others chanting in the Monastery: (11)
    As of 2015-07-06 16:47 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









      Results (77 votes), past polls