Question

Conditional probability in selection of natural numbers.

score 64 · Answer 1 · 2023-08-14 04:48:27

64

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Conditional probability in selection of natural numbers.

Published on 14 Aug 2023 - 4:48

score 30 · Answer 2 · 2026-03-30 03:53:38

30

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How is the sample space the same in the given binomial distribution?

Published on 30 Mar 2026 - 3:53

score 226 · Answer 3 · 2023-08-14 14:06:48

226

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Barge Problem from 26 Years of Posing Problems

Published on 14 Aug 2023 - 14:06

score 431 · Answer 4 · 2026-04-01 00:22:41

431

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Do techniques in contest math differ from those used in solving advanced (but not research level) course problems?

Published on 01 Apr 2026 - 0:22

score 41 · Answer 5 · 2023-08-17 22:36:32

41

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Showing a solution (that cannot be expressed analytically) is directly proportional to a parameter

Published on 17 Aug 2023 - 22:36

score 193 · Answer 6 · 2026-03-28 08:29:56

193

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Binary string such that always at least as many 0s as 1s

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score 45 · Answer 7 · 2023-08-19 20:38:57

A set of points $S$ in the plane has size $n$. For any pair of points in $S$, there is a 3rd element colinear, but never a 4th. What can $n$ be?

score 137 · Answer 8 · 2026-04-03 00:52:32

137

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Books like Béla Bollobás' The Art of Mathematics: Coffee Time in Memphis

Published on 03 Apr 2026 - 0:52

score 700 · Answer 9 · 2023-08-23 22:18:24

700

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3x3 grid, how many different ways can you navigate this grid so that you touch upon every square of the grid exactly once?

Published on 23 Aug 2023 - 22:18

score 47 · Answer 10 · 2023-08-24 13:41:45

47

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Festivals occur once every 20 days and there is independently a 10% chance of a sale on any given day. You also know that half of previous sales have

Published on 24 Aug 2023 - 13:41

score 41 · Answer 11 · 2026-03-26 02:58:16

41

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Way to move the chess piece

Published on 26 Mar 2026 - 2:58

score 119 · Answer 12 · 2023-08-27 15:44:32

119

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Pairwise intersecting sets have nonempty intersection

Published on 27 Aug 2023 - 15:44

score 116 · Answer 13 · 2026-03-27 05:36:09

116

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Soft question - meta-thinking and problem solving internal dialogue.

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score 52 · Answer 14 · 2023-08-29 02:09:26

52

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Hint for proving that the extremum of $f(x)=(x-r_1)(x-r_2)$ is $\frac{r_1+r_2}{2}$ (without calculus)

Published on 29 Aug 2023 - 2:09

score 34 · Answer 15 · 2023-09-01 11:47:00

34

Views

Interesting Solitaire Game

Published on 01 Sep 2023 - 11:47

List Question

Conditional probability in selection of natural numbers.

How is the sample space the same in the given binomial distribution?

Barge Problem from 26 Years of Posing Problems

Do techniques in contest math differ from those used in solving advanced (but not research level) course problems?

Showing a solution (that cannot be expressed analytically) is directly proportional to a parameter

Binary string such that always at least as many 0s as 1s

A set of points $S$ in the plane has size $n$. For any pair of points in $S$, there is a 3rd element colinear, but never a 4th. What can $n$ be?

Books like Béla Bollobás' The Art of Mathematics: Coffee Time in Memphis

3x3 grid, how many different ways can you navigate this grid so that you touch upon every square of the grid exactly once?

Festivals occur once every 20 days and there is independently a 10% chance of a sale on any given day. You also know that half of previous sales have

Way to move the chess piece

Pairwise intersecting sets have nonempty intersection

Soft question - meta-thinking and problem solving internal dialogue.

Hint for proving that the extremum of $f(x)=(x-r_1)(x-r_2)$ is $\frac{r_1+r_2}{2}$ (without calculus)

Interesting Solitaire Game

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