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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