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11h
revised Distribution of the sum of $N$ loaded dice rolls
added Bruce's die
11h
comment Distribution of the sum of $N$ loaded dice rolls
You are talking about your example (with 3/12 being the probability of rolling 6). My example is different.
12h
comment Distribution of the sum of $N$ loaded dice rolls
Ah, but that is not correct. The only way to achieve a sum of 18 is to roll three sixes, and the probability of that in my example is $(2/7)^3 = \frac{8}{343} \approx 0.02332361516.$
12h
comment Distribution of the sum of $N$ loaded dice rolls
Yes, I have confidence in this value. What do you find for the probability that the sum is 18?
12h
answered Distribution of the sum of $N$ loaded dice rolls
12h
reviewed Approve Finding the domain of $\frac{1}{x}|x^2 - 1|$
12h
comment How do I group points into several circles with a given radius?
This paper may have things to say about your problem. compgeom.com/~piyush/papers/kcenter.pdf
Feb
3
revised Is $\{(1,0),(0,0)\}\cup\bigcup_{n\neq1}\{(x,\frac{1}{n}):x\in\Bbb{R}\}$ locally connected?
better title
Feb
3
comment Area of minimum regular polygon given three vertices
I think Hagen von Eitzen addressed your concerns in their answer to math.stackexchange.com/questions/1142644/…
Feb
1
comment Integral of exponential rational function
Have you tried any substitutions? What was the result?
Jan
29
comment Reformulation of Goldbach's Conjecture as optimization problem correct?
Your statement "The minimum number of elements...is the prime numbers" is not coherent; "the prime numbers" is not a number.
Jan
25
revised $(1+i)(e^{(1+i)\phi})$ expressed in polar and rectangular form
better title
Jan
22
comment What defines a “description” of a probability distribution?
You should ask the person who is asking you to "describe" this what they want. That is the best way to be sure.
Jan
20
comment Expected number of rolls required to get sum greater than n for n faced die?
@Let_Me_Be The main difference is that $E(n-1)$ would not be $1$: if your die faces are labelled $0,1,\dots,n-1$ (so there are still $n$ faces, and we assume the die is fair), then $E(n-1)=n/n-1$. All the initial $1$s in the values I showed above should be replace by $n/n-1$, and in the recursions you'd have to consider the possibility of rolling a zero (which was not possible before), so your relationships would be a little different. Cheers!
Jan
15
revised Find the eccentricity of a conic
spelling in title
Jan
15
answered Solve the equation $2φ(x)=x $ for $x\in\mathbb N^+.$
Jan
13
revised Maximum of the product of two poisson mass functions
displaystyle for my weak eyes
Jan
13
revised Find all pairs $(n,k)$ such that $n(n+1) \, \mid\,(k+1)! \,(1^k+2^k+3^k+\cdots+n^k)$
improved readability
Jan
8
comment In a general definition, a sequence starts at zero or at one?
Maybe relevant: math.stackexchange.com/questions/283/is-0-a-natural-number
Jan
6
revised How do you evaluate $\int_{0}^{\frac{\pi}{2}} \frac{(\sec x)^{\frac{1}{3}}}{(\sec x)^{\frac{1}{3}}+(\tan x)^{\frac{1}{3}}} \, dx ?$
better tex