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Birthday paradox- in a random gathering of 23 people, there is a 50% chance that two people will have the same birthday.

2007-11-08 12:43:17 · 4 answers · asked by Kaylight 1 in Science & Mathematics Mathematics

4 answers

Yes. You can see this by calculating the chance in which no two people will have the same birthday, which is
364/365*363/365*...*343/365
this is about 0.5, so the probability of having two people with the same birthday is also about 0.5

2007-11-08 12:51:19 · answer #1 · answered by moshi747 3 · 0 0

Im undecided that's what youre speaking approximately yet once you have a birthday in keeping with annum you age however the solar exhibits no noticable distinction over the era of your lifetime even nonetheless your birthdays are based on earth revolving around the solar?

2016-12-08 16:14:54 · answer #2 · answered by ? 4 · 0 0

It's not really a paradox. It is a consequence of the binomial distribution that if you have x people, you have outcomes from none of the x people have the same birthdate to all of the x people have the same birthdate. If you add all the probabilities except (p=no common birthdate), p= 0.50 appx.

2007-11-08 12:49:29 · answer #3 · answered by cattbarf 7 · 0 0

Umm most likley not. Remember third grade were there was 30 little boys andgirls did anyone share birthdays? how about 8 th grade and your 6 classes anyone in thoese class have same birthdays?

2007-11-08 12:48:35 · answer #4 · answered by ashlei 3 · 1 1

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