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I'm the Rose part of:

Rose, C. and Smith, M.D. (2002-2013)
Mathematical Statistics with Mathematica
Springer-Verlag / mathStatica

and one of the original developers of the mathStatica software add-on for Mathematica. I'm a long-time Mma fan since v2, ... a past Visiting Scholar at Wolfram Research, ... a recent guest editor of The Mathematica Journal, ... and a current editor of the Journal of Statistical Software.


2d
comment Distribution of the ratio of two dependent chi-square
You state that $X$ and $Y$ are dependent, but fail to specify how they are dependent. i.e. you need the joint pdf of $(X,Y)$ or equivalent. There is no answer in the absence of same.
Dec
12
comment Find $\operatorname{Corr}(XY,Y)$ and $\operatorname{Corr}(X^{2},Y^{2})$
More generally, for $Cov(X Y, Y)$, see also: stats.stackexchange.com/questions/116535/…
Dec
12
comment The product of a normal and Bernoulli variables, independent from each other
Duplicate of same question by same author: stats.stackexchange.com/questions/128800/…
Dec
11
answered Distribution of maximum of chi-squares
Dec
11
comment Distribution of maximum of chi-squares
What do you mean by 'different'? If $X \sim Chisquared(v)$, do you mean that $X_i \sim Chisquared(v_i)$, OR that the sample of size $n$ are iid and all drawn from the same distribution with SAME parameter $v$?
Dec
11
comment What is the probability that a Poisson random variable is prime?
I wouldn't worry about voting: the flock can be wary of upvoting a newcomer, while long-timers attract a following. P.S. I would also suggest deleting your 1st and 3rd plots, as they are nested by the other two plots.
Dec
9
awarded  Revival
Dec
9
reviewed Approve The cube of at least one irrational number is rational
Dec
9
reviewed Approve Given two real sequences that go to infinity, is it possible to select two subsequences that grow at the same rate asympotically?
Dec
9
revised Expectation of random varible with normal distribution composed with exponential
deleted 5 characters in body
Dec
9
revised Expectation of random varible with normal distribution composed with exponential
fixed typo and added some comments
Dec
9
answered Expectation of random varible with normal distribution composed with exponential
Dec
8
comment What is the probability that a Poisson random variable is prime?
Nicely done. Basically, you have a one-liner solution, to arbitrary $n$. And p[100,1] //N returns 0.248392 ... I would just present the solution as a function of $\lambda$, without giving the plotting code, as the latter detracts from legibility, and is not of general interest in this forum.
Dec
8
comment What is the probability that a Poisson random variable is prime?
$\sum_{j=0}^\infty \dfrac{1}{j!} I_{prime}(j) = 0.671 ...$. The required probability (when $\lambda = 1$) is $\frac{0.671...}{e} = 0.2483..$, as per the solution of Wolfgang Hintze in Mathematica.
Dec
3
comment The probability that the sum of two random x y values from [0,10] is less than 13
Can you please clarify: when you say numbers 'between 0 to 10' ... do you mean the integers FROM 0 to 10 i.e. {0,1,2, ..., 10}? Or do you mean the real continuous domain (0,10)?
Dec
2
comment Finding the moment generating function of X^2 if X is normally distributed with mean 0 and standard deviation sigma^2
Surely this must exist as a previous question? What have you tried? Almost any statistics textbook will have this.
Dec
2
comment Expectation of a sum of squares of normal variables with different variances.
And are $Z_1$ and $Z_2$ independent?
Dec
1
comment Sum of 'inverse' Normal (1/X) random variables. Equivalent resistance calculation
All this talk of fitting may upset the math purists here ... you might find this question bumped to stats.stackexchange.com ;)
Dec
1
revised Sum of 'inverse' Normal (1/X) random variables. Equivalent resistance calculation
Added plots with n^3 model
Dec
1
comment Sum of 'inverse' Normal (1/X) random variables. Equivalent resistance calculation
$\mathcal{N}\left(\frac{\mu}{n} - blah,\frac{\sigma^2}{n^3}\right)$