Question

7 white balls and 5 black balls. Find the probability that the 6th ball drawn is white, while...

score 3.5k · Answer 1 · 2018-02-15 22:44:47

3.5k

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7 white balls and 5 black balls. Find the probability that the 6th ball drawn is white, while...

Published on 15 Feb 2018 - 22:44

score 74 · Answer 2 · 2026-03-25 07:43:41

74

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Closed form or estimate for $m-$fold sum of binomial coefficients

Published on 25 Mar 2026 - 7:43

score 474 · Answer 3 · 2026-04-02 07:36:19

474

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Coupon Collector problem with unequal probabilities

Published on 02 Apr 2026 - 7:36

score 494 · Answer 4 · 2018-02-16 01:42:06

494

Views

Coin Flipping Game

Published on 16 Feb 2018 - 1:42

score 1.1k · Answer 5 · 2018-02-16 02:37:01

How many distinct triangles with at least one side of length $\sqrt{2}$ units can be drawn using three lattice points for the vertices?

score 123 · Answer 6 · 2026-03-26 22:26:09

123

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How many words can be made from the letters M N C F A E I O U such that a group of exactly two vowels is together?

Published on 26 Mar 2026 - 22:26

score 1.3k · Answer 7 · 2018-02-16 13:47:55

1.3k

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Number of ways to label a die

Published on 16 Feb 2018 - 13:47

score 315 · Answer 8 · 2026-03-25 07:44:00

315

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Show that $ \sum_{k=0}^{n} \binom{2n+1}{2k} 3^k $ is divisible by $2^n$

Published on 25 Mar 2026 - 7:44

score 107 · Answer 9 · 2026-03-26 03:55:05

107

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Number of combinations to draw the sum $n$ from set of $\{1,\dots,n\}$

Published on 26 Mar 2026 - 3:55

score 180 · Answer 10 · 2026-03-26 10:04:10

180

Views

Maximum number of possible paths in an absorbing markov chain

Published on 26 Mar 2026 - 10:04

score 75 · Answer 11 · 2026-04-01 01:40:12

75

Views

Bound for binomial sum

Published on 01 Apr 2026 - 1:40

score 249 · Answer 12 · 2026-03-25 07:42:52

249

Views

Binomial Expansion Find: $\sum_{k=0}^n\binom{n}{k} 2^k $

Published on 25 Mar 2026 - 7:42

score 869 · Answer 13 · 2026-04-01 07:15:05

869

Views

How to expand this generating function

Published on 01 Apr 2026 - 7:15

score 46 · Answer 14 · 2018-02-16 17:22:14

46

Views

Individual's $\Pr(x=n_i)$, for $\sum n_i = n$ different objects distributed across different individuals

Published on 16 Feb 2018 - 17:22

score 655 · Answer 15 · 2026-03-27 00:04:15

655

Views

Arrangement of balls in a grid

Published on 27 Mar 2026 - 0:04

List Question

7 white balls and 5 black balls. Find the probability that the 6th ball drawn is white, while...

Closed form or estimate for $m-$fold sum of binomial coefficients

Coupon Collector problem with unequal probabilities

Coin Flipping Game

How many distinct triangles with at least one side of length $\sqrt{2}$ units can be drawn using three lattice points for the vertices?

How many words can be made from the letters M N C F A E I O U such that a group of exactly two vowels is together?

Number of ways to label a die

Show that $ \sum_{k=0}^{n} \binom{2n+1}{2k} 3^k $ is divisible by $2^n$

Number of combinations to draw the sum $n$ from set of $\{1,\dots,n\}$

Maximum number of possible paths in an absorbing markov chain

Bound for binomial sum

Binomial Expansion Find: $\sum_{k=0}^n\binom{n}{k} 2^k $

How to expand this generating function

Individual's $\Pr(x=n_i)$, for $\sum n_i = n$ different objects distributed across different individuals

Arrangement of balls in a grid

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