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Hello, I have a simple script that simulates a coin toss. I define an array with strings "heads" and "tails" and use rand to choose between these two strings.
#!usr/bin/perl use strict; use warnings; my %probs; foreach( 1..10 ) { print "Coin toss $_\n"; my $value = &coin_toss; $probs{ $value }++; print "Value = $value\n\n"; } print "Total Heads = $probs{ heads }\n"; print "Total Tails = $probs{ tails }\n"; sub coin_toss { my @coin = qw( heads tails ); my $index = rand @coin; return $coin[ $index ]; }
My question is, is this actually random? Is there an equal percentage of choosing either value. I notice that it is very rare for me to get 5 heads and 5 tails. It could be that I am only tossing coins 10 times, is that too small? Is there a better way to do this? Thank you.

In reply to Is this really random? by dr.jekyllandme

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