Question

What is the formula for the birthday problem?

score 8k · Answer 1 · 2014-09-05 01:01:10

8k

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What is the formula for the birthday problem?

Published on 05 Sep 2014 - 1:01

score 536 · Answer 2 · 2014-10-12 12:54:52

536

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Expectation of the sum - birthday anniversary problem.

Published on 12 Oct 2014 - 12:54

score 8k · Answer 3 · 2014-11-13 19:02:31

8k

Views

Birthday Paradox: why permutations and not combinations?

Published on 13 Nov 2014 - 19:02

score 1.9k · Answer 4 · 2019-10-03 07:02:53

1.9k

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Probability that two people share the same birthday?

Published on 03 Oct 2019 - 7:02

score 125 · Answer 5 · 2019-10-18 03:13:59

125

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If people sharing the same birthday raise their hand, how many hands do you expect to see raised?

Published on 18 Oct 2019 - 3:13

score 81 · Answer 6 · 2019-10-18 14:52:48

81

Views

Is there a way to directly calculate the probability that two or more people (of four chosen) have the same birthday?

Published on 18 Oct 2019 - 14:52

score 81 · Answer 7 · 2019-10-26 17:58:45

81

Views

Birthday paradox with a twist

Published on 26 Oct 2019 - 17:58

score 148 · Answer 8 · 2019-10-27 14:05:38

148

Views

Birthday problem: $X = \sum_{j = 1}^{365}$ with $I_j \sim \text{Bern}(p)$ where $p = 1−(364/365)^{110}$

Published on 27 Oct 2019 - 14:05

score 186 · Answer 9 · 2019-10-27 16:03:14

186

Views

Birthday problem: By symmetry, the variance is $\text{Var}(X) = 365 \text{Var}(I_1) + 2 {365 \choose 2} \text{Cov}(I_1, I_2)$.

Published on 27 Oct 2019 - 16:03

score 58 · Answer 10 · 2019-11-12 06:11:49

58

Views

Variation on Birthday Paradox Problem

Published on 12 Nov 2019 - 6:11

score 262 · Answer 11 · 2019-11-12 06:47:47

262

Views

Two solutions to two people having the same birthday

Published on 12 Nov 2019 - 6:47

score 778 · Answer 12 · 2019-11-25 11:40:50

778

Views

There are 3 people in a room.What is the probability atleast 2 of them share same birthday

Published on 25 Nov 2019 - 11:40

score 112 · Answer 13 · 2019-11-26 16:24:47

112

Views

Probability problem, a variant of the birthday problem

Published on 26 Nov 2019 - 16:24

score 225 · Answer 14 · 2020-01-18 17:19:49

225

Views

Birthday problem-Probability exactly $2$ triples and $4$ pairs if $20$ people in room

Published on 18 Jan 2020 - 17:19

score 117 · Answer 15 · 2020-01-26 00:26:44

117

Views

Probability no male- female pairs share same birthday

Published on 26 Jan 2020 - 0:26

List Question

What is the formula for the birthday problem?

Expectation of the sum - birthday anniversary problem.

Birthday Paradox: why permutations and not combinations?

Probability that two people share the same birthday?

If people sharing the same birthday raise their hand, how many hands do you expect to see raised?

Is there a way to directly calculate the probability that two or more people (of four chosen) have the same birthday?

Birthday paradox with a twist

Birthday problem: $X = \sum_{j = 1}^{365}$ with $I_j \sim \text{Bern}(p)$ where $p = 1−(364/365)^{110}$

Birthday problem: By symmetry, the variance is $\text{Var}(X) = 365 \text{Var}(I_1) + 2 {365 \choose 2} \text{Cov}(I_1, I_2)$.

Variation on Birthday Paradox Problem

Two solutions to two people having the same birthday

There are 3 people in a room.What is the probability atleast 2 of them share same birthday

Probability problem, a variant of the birthday problem

Birthday problem-Probability exactly $2$ triples and $4$ pairs if $20$ people in room

Probability no male- female pairs share same birthday

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