DNB‭

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A quiet enigma. We don't know anything about DNB‭ yet.

Posts

80%

+6 −0

Meta Why doesn't \$ work?

2 answers · posted 11mo ago by DNB‭ · edited 9d ago by Monica Cellio‭

Question bug status-completed

71%

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Q&A Why would skyrocketing the numbers of doors help laypeople intuit the Monty Hall Problem?

1 answer · posted 1y ago by DNB‭ · edited 1y ago by DNB‭

Question probability

66%

+2 −0

Q&A How can I deduce which operation removes redundacies?

3 answers · posted 2y ago by DNB‭ · edited 1y ago by DNB‭

Question probability

66%

+2 −0

Q&A $\sum_{k=0}^{n} \binom{n}{k}=2^{n} \overset{?}{\iff} \sum_{k=0}^{n} \binom{2n+1}{k}=2^{2n}$

1 answer · posted 1y ago by DNB‭ · edited 1y ago by DNB‭

Question combinatorics

66%

+2 −0

Meta Why isn't MathJax table appearing?

1 answer · posted 11mo ago by DNB‭ · edited 11mo ago by celtschk‭

Question bug MathJax-rendering

60%

+1 −0

Meta Why isn't \hline rendering here, when it does on Stack Exchange? [duplicate]

0 answers · posted 2y ago by DNB‭ · closed as duplicate 1y ago by Monica Cellio‭

Question bug

60%

+1 −0

Meta Why was my question closed: If Alice must've have classes on at least 2 days, why do you need the intersection of 3 's?

1 answer · posted 1y ago by DNB‭ · edited 1y ago by Canina‭

Question discussion allowed-questions

60%

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Q&A How's it possible to arrange 0 objects? How can 0! = 1?

3 answers · posted 11mo ago by DNB‭ · edited 11mo ago by Quintec‭

Question combinatorics

50%

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Q&A "A occurred" vs. "something must happen"

1 answer · posted 1y ago by DNB‭ · edited 1y ago by DNB‭

Question probability

50%

+1 −1

Q&A Why $\color{red}{k\dbinom{k}{1}} \neq$ "first choose the k team members and then choose one of time to be captain"?

1 answer · posted 1y ago by DNB‭ · edited 1y ago by Wolgwang‭

Question probability

50%

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Q&A How does the change of variable $\color{red}{r↦n−r}$ transmogrify $\sum\limits_{r=0}^n2^{n-r}\binom{n+r}{n}=2^{2n}$ into $\sum\limits_{k=0}^{n} \frac{\binom{2n-k}{n}}{2^{2n-k}}=1$?

1 answer · posted 1y ago by DNB‭ · edited 1y ago by Moshi‭

Question summation

50%

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Q&A If Alice must've have classes on at least 2 days, why do you need the intersection of 3 $A_i^C$'s? [closed]

0 answers · posted 1y ago by DNB‭ · edited 1y ago by DNB‭

Question probability

50%

+0 −0

Q&A How does $\lim\limits_{n \to \infty} \dfrac{p[s + (1 - s)c^n]}{p[ s + (1 - s)c^n] + (1 - p)[s + (1 - s)w^n]} = p?$

1 answer · posted 1y ago by DNB‭ · last activity 1y ago by r~~‭

Question limits

50%

+1 −1

Q&A Intuitively, why does A, B independent $\iff$ A, $B^C$ independent $\iff A^C, B^C$ independent?

1 answer · posted 1y ago by DNB‭ · last activity 1y ago by JRN‭

Question probability

50%

+1 −1

Q&A In general, does $\color{forestgreen}{P(A|M)} + \color{red}{P(B|M)} = 1$?

1 answer · posted 12mo ago by DNB‭ · last activity 11mo ago by whybecause‭

Question probability

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Reputation		-95
Number of top-level posts		70
Number of answers		1
Sum of received votes (up minus down)		-95
Number of edits made		123

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Count		71
Questions		70
Answers		1
Articles		0

Votes cast
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Flags raised
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