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| bio | website | stackexchange.com/users/… |
|---|---|---|
| location | Take a left past the Kuiper Belt | |
| age | 27 | |
| visits | member for | 1 year, 10 months |
| seen | yesterday | |
| stats | profile views | 80 |
PhD candidate in Biostatistics at the University of Pennsylvania
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Oct 20 |
awarded | Commentator |
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Oct 19 |
comment |
$XX^t=A$, $X=?$. Where $X \in \{0,1\}^{n \times m}$ Is your constraint that $\sum_{j=1}^{m}x_{ij}=2$ for the $3\times3$ case, or in general? |
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Oct 19 |
comment |
Finding a constant k such that P(X+Y) = 0.05 +1. I tried the double integration way and kept getting stuck on my limits of integration (Il-Bhima's solution is basically what I tried to do). Drawing a pic of the problem is often a useful trick to try -- it can really simplify the problem. |
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Oct 19 |
comment |
Finding a constant k such that P(X+Y) = 0.05 I retract my answer and point you towards: www-stat.stanford.edu/~susan/courses/s116/node114.html The way I wrote it should work, but there was something subtle I was missing. |
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Oct 19 |
comment |
$\frac{d}{dx}(b^TAx)$ where $b, x \in R^{n\times 1}$ and $A \in R^{n\times n}$ Wikipedia's article on Matrix calculus may help with the definition of vector derivatives. |
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Oct 19 |
awarded | Nice Question |
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Oct 19 |
awarded | Student |
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Oct 19 |
asked | Hilbert's 19th problem: Why do we care? |
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Oct 18 |
comment |
biased Maximum Likelihood estimation MLEs are not required to be unbiased. I'm confused as to what you're asking. |
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Oct 18 |
revised |
Covariance of bi-variate normal distribution re-Fixed LaTeX and added normal distribution tag |
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Oct 18 |
suggested | suggested edit on Covariance of bi-variate normal distribution |
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Oct 18 |
comment |
an independent probability problem Your #1 and #2 are the same. |
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Oct 18 |
revised |
Convergence in probability of Sn / n Replaced 'the easiest' way with 'one way' since I don't know for sure if it's the easiest way |
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Oct 18 |
answered | Convergence in probability of Sn / n |
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Oct 17 |
awarded | Vox Populi |
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Oct 17 |
awarded | Suffrage |
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Oct 17 |
revised |
L'Hôpital's rule in real analysis Converted his math to LaTeX. Added limit tag as its a limit question. |
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Oct 17 |
suggested | suggested edit on L'Hôpital's rule in real analysis |
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Oct 16 |
comment |
What is the relationship of $\mathcal{L}_1$ (total variation) distance to hypothesis testing? It's an Asymptotics course taught by Mark Low. No textbook, though. We basically discuss a lot of the research he's done in the last 15 or so years, so his publications would be the equivalent of the course textbook. |
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Oct 15 |
awarded | Citizen Patrol |
