Peter Taylor
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 Apr 20 reviewed Leave Open Simple probability with dice 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 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 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 Leave Open Combinatorial interpretation of identity: $\sum_{j=0}^b\binom{b}{j}^2\binom{n+j}{2b}=\binom{n}{b}^2$ Apr 17 reviewed Close Prove $\lim_\limits{x\to\infty}\dfrac{P_k(x)}{P_{k+1}(x)}=0$ Apr 17 comment Prove $\lim_\limits{x\to\infty}\dfrac{P_k(x)}{P_{k+1}(x)}=0$ possible duplicate of Finding the limit of $\frac{Q(n)}{P(n)}$ where $Q,P$ are polynomials Apr 16 reviewed Leave Open Product of two infinite sequences