Mathematics
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user133281
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All Questions Answers
Score Newest
answer
87
I roll a die repeatedly until I get 6, and then count the number of 3s I got. What's my expected number of 3s?
Sep 6, 2015
answer
48
Can a solved Sudoku game have an invalid region if all rows and columns are valid?
Jun 21, 2017
answer
32
Why does this test for Fibonacci work?
Jan 12, 2015
answer
26
Lebesgue integral of a positive function on a set of positive measure
Jan 28, 2015
question
21
Writing integers as a product of as few elements of $\{\frac21, \frac32, \frac43, \frac54, \ldots\}$ as possible
Apr 11, 2018
answer
19
Convergence of $\sum \frac{(2n)!}{n!n!}\frac{1}{4^n}$
Sep 29, 2014
answer
17
Mutually exclusive countable subsets of a countable set
Oct 25, 2015
answer
14
I roll a die repeatedly until I get 6, and then count the number of 3s I got. What's my expected number of 3s?
Sep 6, 2015
answer
14
Can anyone help me with a graph: exponential but never reaches 1
Jun 15, 2017
question
13
Does there exist a finite group with orders of elements $1$, $2$, ..., $8$ (but no elements of larger order)?
Oct 23, 2016
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Writing integers as a product of as few elements of $\{\frac21, \frac32, \frac43, \frac54, \ldots\}$ as possible

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