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Bravo's user avatar
Bravo
  • Member for 12 years, 2 months
  • Last seen more than a month ago
  • Madras
47 votes

Expected Value of the maximum of two exponentially distributed random variables

12 votes

Conditional distribution in Brownian motion

8 votes
Accepted

What does positive definite matrix mean?

6 votes
Accepted

$y(n) = x(-n)$ , causal or not , memory or memoryless?

6 votes
Accepted

Why does the series $\sum_{n=1}^\infty\frac{(-1)^{n-1}n!}{10^n}$ not converge?

6 votes

Biased coin flipped until $r$ heads appear

5 votes
Accepted

Find the expected value of the largest piece of a stick.

5 votes
Accepted

Relationship between a convex function and a convex set

4 votes
Accepted

Proving a matrix is positive definite using Cholesky decomposition

4 votes

Monotonically increasing vs Non-decreasing

4 votes

Values of $a$ for which $(a+4)x^2-2ax+2a-6 <0$ for all $x \in R$

4 votes

Prove that $ 1 + \frac{1}{2} + \frac{1}{3} + \cdots + \frac{1}{n} = \mathcal{O}(\log(n)) $.

3 votes
Accepted

A question dealing with the convexity of functions involving the absolute value

3 votes

Joint density with continuous and binary random variable

3 votes
Accepted

Arguing a stationary distribution exists

2 votes

Find the derivative of $f(x)=x^{x^{\dots}{^{x}}}$.

2 votes

Distribution of Product of Random Variables with one being the normal distribution.

2 votes

Expected value of a variable related to uniform r.v.

2 votes
Accepted

Probability with Markov chains

2 votes
Accepted

Show the memoryless property is equivalent to other expressions.

2 votes

Linear optimization problem: Minimizing a linear function over an affine set.

2 votes

Why the number of ways of selecting $r$ things out of $n$ identical things is 1

2 votes

Finding the transition probability matrix, two switches either on or off..

2 votes
Accepted

For what value of $p$ is $(M_n)$ a martingale

2 votes
Accepted

Minumum of a function

2 votes
Accepted

How to get transition rates in a $M/M/\infty$ queue

2 votes

what is the median of the CDF with the form $F(x) = 1 - e^{-(x/3)^2}$, for $x \gt 0$

2 votes

Constrained maximization problem

2 votes
Accepted

Representing train schedules in a matrix

2 votes

Which ice cream shop will get the most customers?