Simulating the Birthday Problem

number of people

23

random seed

49

	Double matching	Triple matching	Quadruple matching
Number of matchings	1	0	0
At least probabilities	0.5073	0.01271	0.00017

The birthday problem asks for the probability that among a certain number of people two share the same birthday. This Demonstration realizes the Monte Carlo experiment of the birthday problem. You can see whether a birthday is shared twice, three times, or four times, as well as the theoretical probability of that happening.