FelixCQ

738 reputation

bio	website
	location
	age
visits	member for	1 year, 10 months
	seen	2 days ago
stats	profile views	34

	738 reputation	bio	website		visits	member for	1 year, 10 months
27 badges		location			seen	2 days ago

summary answers questions tags badges favorites bounties reputation activity

46 Actions

suggestions reviews revisions comments badges posts accepts all

Jun 30	awarded	Yearling
Apr 11	awarded	Scholar
Apr 11	accepted	Combinatorial interpretation of Delannoy numbers formula
Apr 9	awarded	Student
Apr 9	asked	Combinatorial interpretation of Delannoy numbers formula
Feb 8	answered	PDE diffusion problem
Feb 7	comment	Can the natural numbers be uncountable? Well, at least your proof is correct to show that $p$-adic integers are uncountable.
Nov 21	awarded	Enthusiast
Nov 21	awarded	Nice Answer
Nov 17	answered	Mathematical formula to generate a curved Chinese-style roof
Nov 16	answered	Prove if $a>0, b>0$, $P(X\cdot Y\le b)\ge P(X\le b/a)-P(Y>a)$, where $X,Y$ random variables?
Nov 15	revised	Rigorous proof of a simple fact dealing with event space in probability theory added details on induction
Nov 15	answered	Rigorous proof of a simple fact dealing with event space in probability theory
Nov 11	answered	Probability about three independent exponential random variables
Nov 9	awarded	Commentator
Nov 9	comment	Getting exactly $n$ points from coin tossing You can even generalize directly for a biased coin, and get, where $p$ is the probability of obtaining tail (of scoring two points), $P_n=\frac{1}{1+p}\left(1-(-p)^{n+1}\right)$.
Oct 31	revised	If $V_1=\ker(P)$, $V_2=\ker(I-P)$ and $V=V_1 \oplus V_2$ then prove $P^2=P$? added complete answer
Oct 31	comment	If $V_1=\ker(P)$, $V_2=\ker(I-P)$ and $V=V_1 \oplus V_2$ then prove $P^2=P$? @Gerry: Judging from the votes -- and the comments from the OP -- it seems you were right! I will try to be less elliptical in the future.
Oct 31	comment	New to probability - Is this true? Also, see this related interview question.
Oct 31	comment	New to probability - Is this true? FYI, the general principle behind this example is called rejection sampling.