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seen Oct 17 at 18:01

Jan
18
accepted Is the construction of $\mathbb{R}$ by Cauchy sequences due to Cauchy? For that matter, are Cauchy sequences due to Cauchy?
Jan
18
asked Is the construction of $\mathbb{R}$ by Cauchy sequences due to Cauchy? For that matter, are Cauchy sequences due to Cauchy?
Jan
9
answered Fixed point of tree automorphism
Jan
9
reviewed Approve suggested edit on Polar form of quadratic equations
Jan
9
answered Why is Euclid's proof on the infinitude of primes considered a proof?
Dec
23
comment Find x, when F(x) is a cdf with given mean and std
Right, that does not fully specify a distribution though. Lots of random variables have that same mean and standard deviation but have different distributions and hence would have a different solution for $x$. I'll assume that in this case it is a normal random variable, but in general it could be anything so you should say that it's normal.
Dec
23
comment Find x, when F(x) is a cdf with given mean and std
is that comma a decimal point in "0,8"? Also, what kind of distribution does $X$ have?
Dec
23
reviewed Approve suggested edit on Sequential sums $1+2+\cdots+N$ that are squares
Dec
22
answered Why can $y-y_1 = m(x-x_1)$ describe a line but $m=(y-y_1)/(x-x_1)$ is missing a point?
Dec
20
answered Wolfram Alpha unexpected answer.
Dec
20
comment Show that a continuous function with a certain integral property must be f(x)=x.
note that you don't have any assumptions about differentiability so, strictly speaking, integration by parts isn't available to you
Dec
17
answered Question on Expected Value, discrete case
Dec
17
answered Finding density function for uniform distribution
Dec
17
comment “Let $G$ be a planar graph. Show that every pair of vertex-disjoint odd cycles in $G^c$ is connected by an edge.” Can't figure out why “odd” matters.
@ErickWong it seems to be in isolation in this case; can you see anything wrong with the proof above?
Dec
17
comment “Let $G$ be a planar graph. Show that every pair of vertex-disjoint odd cycles in $G^c$ is connected by an edge.” Can't figure out why “odd” matters.
@hbm You're right, I edited it to change slightly. Is what I have now true?
Dec
17
revised “Let $G$ be a planar graph. Show that every pair of vertex-disjoint odd cycles in $G^c$ is connected by an edge.” Can't figure out why “odd” matters.
added 7 characters in body
Dec
17
revised “Let $G$ be a planar graph. Show that every pair of vertex-disjoint odd cycles in $G^c$ is connected by an edge.” Can't figure out why “odd” matters.
added 27 characters in body
Dec
17
revised “Let $G$ be a planar graph. Show that every pair of vertex-disjoint odd cycles in $G^c$ is connected by an edge.” Can't figure out why “odd” matters.
added 2 characters in body
Dec
17
asked “Let $G$ be a planar graph. Show that every pair of vertex-disjoint odd cycles in $G^c$ is connected by an edge.” Can't figure out why “odd” matters.
Dec
17
awarded  Good Answer