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23 and Football Birthdays - Numberphile

2012-02-14

[public] 157K views, 2.23K likes, 25.0 dislikes audio only

What's the probability that two people on the football/soccer pitch share a birthday?

More links & stuff in full description below ↓↓↓

That's only 23 people (22 players and the ref, as long as there have been no red cards or injuries!!!) and there are 365 days in a normal year.

Dr James Grime explains. Our thanks to Nottingham Forest Football Club.

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Why Is 23 an Important Number in Football
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The Probability that no One on that Pitch Shares a Birthday
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Probability that Someone Does Share a Birthday
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Numberphile Videos about numbers and mathematics. Videos by Brady Haran since 2011.
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James Grime on Numberphile by Numberphile
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Big Numbers on Numberphile by Numberphile
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