Mike Wierzbicki
Reputation
1,156
Top tag
Next privilege 2,000 Rep.
 Nov 2 revised Confused about modular notations added latex and relevant tags Nov 2 suggested approved edit on Confused about modular notations Nov 2 comment Expressing the Venn diagram Also be careful with what you're taking out when you add $(E-C)$. Nov 2 comment Expressing the Venn diagram $(A\cap B\cap C)$ is counted in $(A\cap B) + (A\cap C)$ twice, so if you subtract $(A\cap B\cap C)$, you're still left with one. Nov 2 answered Finding an inequality for a word problem Nov 1 awarded Civic Duty Oct 27 revised Are there any (pairs of) simple distributions that give rise to a power law ratio? added note about Dilip's (correct) response. Oct 27 comment Are there any (pairs of) simple distributions that give rise to a power law ratio? +1 Nicely done. I didn't bother with fact-checking as my answer was meant more of a 'point-in-the-right-direction' rather than a 'here's-the-solution.' More wise advice from Dilip: fact-check your sources. Oct 24 comment What is the following Calculation about? Hi testiii, I converted your math to LaTeX. Can you make sure I copied the problem correctly? Oct 24 revised What is the following Calculation about? Inserted LaTeX Oct 24 suggested approved edit on What is the following Calculation about? Oct 22 comment Stuck trying to prove an inequality @Phira I get $9\leq 2+0+2+2+0+2+2+0+0=10$. Oct 22 comment Are there any (pairs of) simple distributions that give rise to a power law ratio? Wise advice. Always check what notation is being used. Oct 21 answered Are there any (pairs of) simple distributions that give rise to a power law ratio? Oct 21 comment What is the relationship of $\mathcal{L}_1$ (total variation) distance to hypothesis testing? @cardinal I believe you're right. There's another subtle step hidden: $TV(P_0, P_1)=\sup_A (|P_0 - P_1|)$, so you need to convince your self that $\sup_A (|P_0 - P_1|)=\sup_A (P_0 - P_1)$ (which doesn't take much convincing). Oct 20 answered The role of writing in understanding concepts Oct 20 comment Expected number of draws until the first good element is chosen @MikeSpivey +1 Of course! Serves me right for thinking through the problem too quickly! I'll remove it to avoid confusion. Oct 20 answered Values of parameters for which a function is differentiable Oct 20 awarded Commentator 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?