Abstract
- A list of interesting probability problems
Birthday Problem
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Deals with the likelihood of two people sharing the same birthday within a group
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The probability of a shared birthday becomes quite high with a relatively small number of people
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The question is usually framed like this: How many people need to be in a room for there to be a 50% chance that at least two of them share the same birthday?
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The counterintuitive answer is only 23 people are needed to reach a probability of approximately 50%
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This phenomenon arises from the fact that there are numerous potential pairs of people who could share a birthday in a group, and as the group size increases, the probability of a shared birthday increases more rapidly than one might intuitively expect