Reputation
4,782
Top tag
Next privilege 5,000 Rep.
Approve tag wiki edits
Badges
1 13 28
Newest
 Steward
Impact
~89k people reached

Apr
18
reviewed Looks OK Representing Several IF statements inside a FOR loop in Math Notation
Apr
18
reviewed Close Mathematical induction prove that 9 divides $n^3 + (n+1)^3 + (n+2)^3$ .
Apr
18
reviewed Close If $|G|=p^n$, then $p^2 \le |G : G^\prime|$.
Apr
18
reviewed Close If $A \cap B \cap C = \varnothing$, is one $A \cap B$, $B \cap C$ or $C \cap A$ empty too?
Apr
18
reviewed Close Stuck on proof of a martingale equality (similar to doob's inequality)
Apr
18
reviewed Close Give a procedure using assignment statement to interchange the values of the variables $x$ and $y$.
Apr
18
reviewed Close Conditional distribution of two binomials which both depend on a third
Apr
18
comment Conditional distribution of two binomials which both depend on a third
You have $C\sim\text{B}(N,c)$ and $N\sim\text{B}(C,\alpha)$. Is that the same $N$ in both cases??
Apr
18
reviewed Close Show all final 2-digit numbers of the decimal expansions of squares are to be found among those of $0^2, 1^2,…25^2$
Apr
17
reviewed Close Calculus II Function Construction
Apr
17
reviewed Close Largest eigenvalues of AA' and A'A
Apr
17
reviewed Close In the card came “Projective Set”, show that 7 cards do always contain a set.
Apr
17
reviewed Close define a function SAGE
Apr
17
comment Coupon collector variation (with deleterious coupons and tolerance)
It is better than it was, but it would be better still if you outlined what progress you have made with solving the problem.
Apr
17
reviewed Reopen Coupon collector variation (with deleterious coupons and tolerance)
Apr
17
reviewed Close Prove an eigenvector for two matrices is also the eigenvector for the product of those matrices.
Apr
17
reviewed Leave Open Transitivity of a stochastic order
Apr
17
answered Transitivity of a stochastic order
Apr
17
reviewed Close Proving $k$ is divisible by $3$ iff the sum of the digits of $k$ is divisible by 3
Apr
17
reviewed Close Proving trigonometric identity $\frac{1+\sin x}{1-\sin x}-\frac{1-\sin x}{1+\sin x}=4\sec x \tan x$