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As somebody used to say:

Does research. Smokes. Battles administration. Smokes. Wishes he could stop battling administration so that he could have more time to do research. Smokes some more.

The same. Except I do not smoke.


How to ask a good question?

This paragraph is for my personal use but freely available:

Welcome to Math.SE! Please, consider updating your question to include what you have tried and where you are getting stuck. That way, people on this site will know exactly what help you need.


2h
comment How to find a continuous function that demonstrates that the set $\{(x,y):y>x\}$ is open?
Being "just a little sloppy" makes that each reader wonders what you might mean by a continuous function inverse of an open set. Something to avoid, wouldn't you say?
4h
comment Range of a marginal density function?
Sorry for the parts in boldface but the repetition of the confusion due to PDFs incorrectly defined is somewhat heartbreaking...
4h
answered Range of a marginal density function?
7h
comment Inverse of $f(x)= x+\sin(x)$?
Sooo... $x=-i\ln t$ AND $x=\ln t$?
14h
comment Distribution whose PDF is proportional to the product of a PDF and a CDF
$P(A\mid B)=P(A\cap B)/P(B).$
14h
comment Variance of integrated squared wiener process
You are merely rewriting things. Why the covariance would be easier to compute ? (It is not.) Sooner or later you will have to use the dependence structure of (W(t),W(s)). What is this dependence already?
1d
answered Variance of integrated squared wiener process
1d
comment probability of hitting state $i$ in random walk
Yes. $ $ $ $ $ $
1d
comment Reducing a system of differential equations
But F is never a function of t...
1d
comment Is conditional Prob less than unconditional prob?
Deliberate duplicate.
1d
answered How to find transition probability matrix $P$ by using transition rate matrix $T$?
1d
comment I can't understand this difference equation step
How is the question related to the passage reproduced?
1d
comment Infinite products of scaled indicator variables: almost sure convergence vs. uniform convergence of the sample mean
The products are not uniformly bounded.
1d
comment probability of randomness
Either you become green or you don't, hence the probability is 50%. This is a real thoughtful answer.
1d
awarded  Enlightened
1d
awarded  Nice Answer
2d
comment Probability generating function for pascal distribution
Do you realise that $n$ is fixed once and for all?
2d
comment Check for independence of variables when the density (or distribution) is known.
@leonbloy Thanks...
2d
comment Solving system of differential equations $\dot{x}=3x - 2y$, $\dot y = 2x - y + 15 e^t \sqrt{t}$
@JpMcCarthy Indeed, why?
2d
comment Solving system of differential equations $\dot{x}=3x - 2y$, $\dot y = 2x - y + 15 e^t \sqrt{t}$
Please show these tries of yours, otherwise we are just whistling in the wind.