Jul
22
reviewed Approve suggested edit on Integral $\int_{0}^{\pi/2} \arctan \left(2\tan^2 x\right) \mathrm{d}x$
Jul
22
reviewed Close complex variable integral using residue theorem
Jul
22
reviewed No Action Needed What makes induction a valid proof technique?
Jul
22
reviewed Approve suggested edit on Reverse a formula with codependent expressions
Jul
22
revised Expected number of changes of serves in a game of raquetball
added 7 characters in body
Jul
22
comment Trace of power of stochastic matrix
you are essentially asking how does the overall probability that a state remains where it is in 1 move compare with a state remains where it is in 2 moves...
Jul
22
revised Trace of power of stochastic matrix
added 8 characters in body
Jul
22
comment Trace of power of stochastic matrix
nevertheless, it is still false, change the $0$ to a small $\epsilon$.
Jul
22
answered Trace of power of stochastic matrix
Jul
22
comment Asymptotics of sum of binomial distributions
+1, thanks again.
Jul
22
answered Expected number of changes of serves in a game of raquetball
Jul
22
revised Expectation related to Normal distribution and its density
edited body
Jul
22
revised Expectation related to Normal distribution and its density
added 393 characters in body
Jul
22
answered Expectation related to Normal distribution and its density
Jul
22
comment Expectation related to Normal distribution and its density
I seem to get this to be true only when $\sigma< 1$... and that might sense somewhat.
Jul
22
comment Expectation related to Normal distribution and its density
You were probably too wasteful throwing away the $\Phi$ term.
Jul
22
revised Properties of conditional expectation
edited title
Jul
21
reviewed Approve suggested edit on Inequalities, when does the sign change here?
Jul
21
reviewed Leave Open Martin's Axiom and products of c.c.c. spaces
Jul
21
reviewed Close Set and cardinality injection and surjection proof