Probabilities for the classic Birthday Problem 

 In a randomly selected group of  N  people, what is
 the probability that no two have the same birthday?

	 N = 1 	  probability = 1.000 
	 N = 2 	  probability = 0.997 
	 N = 3 	  probability = 0.992 
	 N = 4 	  probability = 0.984 
	 N = 5 	  probability = 0.973 
	 N = 6 	  probability = 0.960 
	 N = 7 	  probability = 0.944 
	 N = 8 	  probability = 0.926 
	 N = 9 	  probability = 0.905 
	 N = 10	  probability = 0.883 
	 N = 11	  probability = 0.859 
	 N = 12	  probability = 0.833 
	 N = 13	  probability = 0.806 
	 N = 14	  probability = 0.777 
	 N = 15	  probability = 0.747 
	 N = 16	  probability = 0.716 
	 N = 17	  probability = 0.685 
	 N = 18	  probability = 0.653 
	 N = 19	  probability = 0.621 
	 N = 20	  probability = 0.589 
	 N = 21	  probability = 0.556 
	 N = 22	  probability = 0.524 
	 N = 23	  probability = 0.493 
	 N = 24	  probability = 0.462 
	 N = 25	  probability = 0.431 
	 N = 26	  probability = 0.402 
	 N = 27	  probability = 0.373 
	 N = 28	  probability = 0.346 
	 N = 29	  probability = 0.319 
	 N = 30	  probability = 0.294