This is an interesting probability problem (paradox). And no, this isn’t about the Cheryl’s Birthday Problem.
In probability theory, the birthday problem or birthday paradox[1] concerns the probability that, in a set of n randomly chosen people, some pair of them will have the same birthday. -Wikipedia
The above graph shows how many people you need to approach to find someone who has the same birthday with you!
This shows how counter-intuitive probability is! And like what I always tell my students, don’t use intuition for probability but formulas.
[…] This is question in relation to the birthday paradox we discussed earlier. […]
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