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In group of 100 what is the expected number of pairs of peole who have the same birthday
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In group of 100 what is the expected number of pairs of peole who have the same birthday

User Bob Flannigon
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5 votes
1 pair is the correct answer according to the Birthday problem method. :)
User Marty Trenouth
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2 votes
50. That is the expected number. Because 100 divided by 2 equals 50. 
User Justabuzz
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