From: Run Paint Run Run <runrun@...>
Date: 2010-03-03T12:04:23+09:00
Subject: Re: Random integer within a range?

Under Ruby 1.9:

    10.times.map{ Random.new.rand(20..30) } #=> [26, 26, 22, 20, 30,
26, 23, 23, 25, 22]