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Feb
6
awarded  Revival
Feb
5
comment Big O notation - Proving that a function is not O(n)
Quote: "I'm not looking for someone to give me a full answer, I just need some pointers on how to go about starting..."
Feb
5
comment Cardinality of a finite algebra
Hint: Every finite algebra is generated by a partition.
Feb
5
revised Measure Theory and Law of Large numbers
added 11 characters in body
Feb
5
revised Time Complexity in $\theta$ Notation
added 148 characters in body
Feb
5
comment Time Complexity in $\theta$ Notation
Please use \Theta.
Feb
5
answered Time Complexity in $\theta$ Notation
Feb
5
comment Convexity of Binomial Term
@Henry Concavity with respect to n is out of the question, by inspection for y=6 or by comparison with a normal density when y is large.
Feb
5
comment Prove that $\left(\frac12(x+y)\right)^2 \le \frac12(x^2 + y^2)$
Compute the RHS minus the LHS, this is a perfect square.
Feb
5
answered Measure Theory and Law of Large numbers
Feb
5
revised Expectation of a non-negative random variable
edited body
Feb
5
comment Densitiy of Sum of Exponetial RVs (Basic)
@V.Rossetto Even knowing several ways to do this computation, I frankly do not understand your hint.
Feb
5
answered Densitiy of Sum of Exponetial RVs (Basic)
Feb
5
comment Total number of nodes in critical Galton-Watson process
Did you check the literature, for example the book by Lyons and Peres? This is a classical result.
Feb
5
answered What is $\lim_{k\to\infty}\frac{A_k}{\sum_{i=1}^k A_i}$?
Feb
5
revised Can someone please show me how to answer this question?
edited tags
Feb
5
comment Given the sum of two exponential random variables, what is the conditional distribution of one of them?
This question is missing context or other details: Please improve the question by providing additional context, which ideally includes your thoughts on the problem and any attempts you have made to solve it. This information helps others identify where you have difficulties and helps them write answers appropriate to your experience level.
Feb
5
comment Given the sum of two exponential random variables, what is the conditional distribution of one of them?
Unfortunately the ratio is 0/0. @upvoter Why the upvote?
Feb
5
comment Transformation of a uniform distribution in order to get a random variable distributed like Y.
Sorry but you are not answering my query for clarification and I have no idea about the real nature of your problem.
Feb
5
awarded  Nice Answer