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Combinations trouble

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#combinatorics #combinations
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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
49
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3 combination and permutation problems. Why combination here but permutation there?

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#probability #combinatorics #permutations #combinations
21
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Combinatorics arranging repeated numbers

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#combinatorics #combinations
57
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Is it possible to show ${k\choose 2} \ge \sum_{i } {x_i\choose 2} $ such that $\sum_i x_i =k$

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#combinatorics #combinations #combinatorial-proofs
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Combinatorics Problem with Coins

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#combinatorics #combinations
261
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How many ways to pick 11 coins from those five piles of coins which must consists of all five different value of coins

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#combinatorics #discrete-mathematics #combinations
36
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The count of good "words"

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#combinatorics #combinations
95
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Prove that there exists a graph with these points such that G is connected

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#real-analysis #probability-theory #proof-verification #combinations
247
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Conditional Probability on Cards of the Same Suit

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#probability #combinations
54
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If Larry, Moe and Curly visit a town with 7 churches

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#permutations #combinations
56
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How many unique integers to be obtained by $\left\lceil\frac{F}{1:1:N}\right\rceil$?

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#combinatorics #number-theory #elementary-number-theory #combinations
50
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Probability 3 couples out of 6 are paired around table

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#probability #combinations
535
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Given that $X \sim \operatorname{Binomial}(n,p)$, Find $\mathbb{E}[X(X-1)(X-2)(X-3)]$

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#summation #combinations #binomial-distribution #expected-value
67
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Weird Combination question a friend gave me

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#combinatorics #combinations

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