How much more likely are you to roll 6 dice uniquely than all the same?

greed.rb

greed = 0
flush = 0
10000000.times do
 dice = []
 6.times do
  dice.push((1..6).to_a.sample)
 end
 if dice.include?(1) and dice.include?(2) and dice.include?(3) and dice.include?(4) and dice.include?(5) and dice.include?(6)
  greed += 1
 elsif dice[0] == dice[1] and dice[1] == dice[2] and dice[2] == dice[3] and dice[3] == dice[4] and dice[4] == dice[5]
  flush += 1
 end
end
puts "$GREED = #{greed}"
puts "Flush = #{flush}"