public class ScrabbleBet {
	public double estimate(int trials, int games, int winsNeeded, int winChance)
	{
		int total = (int)Math.pow(2, games);
		double numWin = 0;
		double lose = (100 - winChance)/100.0;
		double loseC = 0;

		for (int i = 0; i < winsNeeded; i++)
		{
			loseC += (Math.pow(winsNeeded/100.0, i) + Math.pow(lose, games - i));
		}
		System.out.println(loseC);

		return 1 - Math.pow(loseC, trials);

	}

	public static void main(String[] args)
	{
		System.out.println(new ScrabbleBet().estimate(2, 2, 1, 50));
	}
}