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Turning a Biased Coin into an Unbiased one Deterministically

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#probability #combinatorics #algorithms
37
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Combinations trouble

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#combinatorics #combinations
168
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Showing that a greatest common divisor must be 1 or 2 using pigeonhole principle

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#combinatorics #discrete-mathematics #gcd-and-lcm #pigeonhole-principle
1.3k
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Show that distinct subsets of a set have equal sums using pigeonhole principle

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#combinatorics #discrete-mathematics #pigeonhole-principle
757
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How to find the number of ways to seat $n$ married couples around a table if men and women alternate

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#combinatorics
134
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buying multiple lotto tickets

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#combinatorics #statistics #expected-value
221
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About "combinatorial topology", what Munkres covers and a textbook reference request

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#combinatorics #graph-theory #algebraic-topology #combinatorial-geometry #topological-graph-theory
67
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Doubt in a paper on combinatorial designs

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#combinatorics #combinatorial-designs
749
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Rolling a fair 6 sided die k times

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#probability #combinatorics
152
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Six counters are tossed. How many outcomes are possible if the six counters are distinguishable? Indistinguishable?

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#probability #combinatorics #probability-theory #probability-distributions #combinations
264
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Combinatorics: Number of permutations from $1$ to $60$, with cyclic permutation of length $l > 30$

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#probability #combinatorics #harmonic-numbers #permutation-cycles
3.6k
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In how many ways can $n$ dogs and $k$ cats be arranged in a row so that no two cats are adjacent?

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#combinatorics
683
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Number of unique ways to select $3$ balls from $4$ red balls, $2$ green balls and $1$ blue ball

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#combinatorics
219
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Tile 1xn walkway with selective repetition

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#combinatorics #discrete-mathematics #recurrence-relations
359
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Show that distinct subsets of a specific-cardinality subset have equal sums

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#combinatorics #discrete-mathematics #pigeonhole-principle

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