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15
Math.TechQA.Club
2026-04-16 23:33:37
868
Views
Find the probability that the thirteenth spade will appear before the thirteenth diamond?
Published on
16 Apr 2026 - 23:33
#probability
#combinatorics
829
Views
Explanation of the form of the summation notation used in set covering and other similar problems
Published on
16 Apr 2026 - 2:23
#combinatorics
#graph-theory
#summation
654
Views
What is the probability I get at least one call each day if my telephone rings 12 times each week?
Published on
16 Apr 2026 - 6:26
#probability
#combinatorics
98
Views
Show that there are less injective than surjective functions from A to B
Published on
11 Apr 2026 - 11:14
#combinatorics
#discrete-mathematics
2.3k
Views
Is it possible to easily count all the possible distinct sums from distinct numbers?
Published on
10 Apr 2026 - 18:17
#combinatorics
70
Views
Types of permutations - official naming?
Published on
12 Apr 2026 - 10:22
#combinatorics
#permutations
229
Views
Possible number of outcomes of $10$ indistinguishable dice
Published on
13 Apr 2026 - 20:52
#combinatorics
#combinations
174
Views
Probability that the largest number appearing in a draw is X.
Published on
15 Apr 2026 - 2:27
#probability
#combinatorics
45
Views
Partition $n$ objects into two groups, maintaining order
Published on
14 Apr 2026 - 7:35
#combinatorics
49
Views
Number theoretic calculation of probability problem involving partitions.
Published on
10 May 2026 - 19:28
#probability
#combinatorics
#number-theory
#soft-question
#integer-partitions
12.3k
Views
7 fishermen caught exactly 100 fish and no two had caught the same number of fish. Then there are three who have together captured at least 50 fish.
Published on
10 May 2026 - 16:13
#combinatorics
#discrete-mathematics
#contest-math
#pigeonhole-principle
#discrete-optimization
631
Views
Every clique with 17 vertices which it's edges are colored with 3 different colors must have monochromatic triangle
Published on
12 Apr 2026 - 6:50
#combinatorics
#graph-theory
138
Views
What is the chance that there are not 4 or more consecutive white balls?
Published on
15 Apr 2026 - 5:49
#probability
#combinatorics
#combinations
199
Views
In how many ways can I select 4 groups from 10 indistinguishable items where each selected group only contains either 0 or an odd number of items
Published on
17 Apr 2026 - 3:21
#combinatorics
#discrete-mathematics
#combinations
68
Views
Notation of sum $a+b+c+\cdots=n$ without repeatings
Published on
16 Apr 2026 - 1:55
#combinatorics
#summation
#notation
#factorial
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