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Mar
19
comment How to prove that $\sum_{d|n}d^{-\varepsilon}\leq C(\varepsilon)n^{\varepsilon}$
This is true even for $\epsilon=0$.
Mar
19
comment Please Help me. (Poisson Process: Customer arrival time).
Just noticed that this could be done easier if we ignore the order between $S_i$'s and regard them as the independent uniform random variables on $[0,t]$.
Mar
18
answered $P(\{S_k\ge c\}\cap\{S_{k-1}<c\})$, where $S_k$ is the sum of iid exponential random variables
Mar
18
revised Conditional expectation of 1st arrival in merged poisson process conditioned on 1st arrival comes from process A
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Mar
18
answered Conditional expectation of 1st arrival in merged poisson process conditioned on 1st arrival comes from process A
Mar
18
comment another follow up question: modeling with exponential distributions
I am getting $c=2$ assuming that the formula for $E(T)$ is right.
Mar
18
comment How do I find$ P(X > 2Y)$?
The answer turns out to be $(2015-411\sqrt{17})/1536\approx 0.2086$.
Mar
18
comment Let $X = \dfrac{1}{25} \sum\limits_{i=1}^{25} X_i$ and $Y =\dfrac{5}{2}X - \dfrac{2}{5}$. What is $P(|Y| > 1)$?
The numerical value is approximately 0.8653.
Mar
17
revised Please Help me. (Poisson Process: Customer arrival time).
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Mar
17
revised Please Help me. (Poisson Process: Customer arrival time).
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Mar
17
revised Please Help me. (Poisson Process: Customer arrival time).
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Mar
17
revised Please Help me. (Poisson Process: Customer arrival time).
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Mar
17
revised Please Help me. (Poisson Process: Customer arrival time).
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Mar
17
answered Please Help me. (Poisson Process: Customer arrival time).
Mar
17
awarded  Yearling
Jan
27
awarded  Nice Answer
Jan
26
comment On sets with positive density.
A short answer is No. Try to find a function $f(x)$ such that both sets have positive density.
Jan
26
answered Comparing Euler products
Dec
30
awarded  Good Answer
Dec
15
comment Converse of Chinese Remainder Theorem
The theorem is for the natural injective homomorphism, but I am asking for just isomorphism.