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Mathematics
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Aidan
  • Member for 1 year, 6 months
  • Last seen more than a month ago
  • Boston, MA, USA
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2
I've been struggling with this method of proving $E[X^2] > E[X]^2$.
Mar 1, 2023
1
If I deal 7 cards what is the probability that there is at least one card from each suit.
Feb 16, 2023
1
If $P(E \mid F) < P(E)$ does that mean that $P(F \mid E) < P(F)$.
Feb 26, 2023
1
I want to prove that knowing $P(A \mid C) > P(B \mid C)$ and $P(A \mid C^c) > P(B \mid C^c)$ then $P(A) > P(B)$.
Feb 27, 2023
1
Prove the The Cauchy--Schwarz--Buniakowski inequality using the fact that $E[X]^2 \le E[X^2]$.
Mar 1, 2023
1
Proof that $3 \mid 10^{n+2} - 2*10^n + 7, \forall n \in \mathbb{Z}^+$.
Mar 2, 2023
1
Proof that given a continuous random variable $X$ with density function $f(x)$ then $\mathbb E[g(X)] = \int_{-\infty}^{\infty} f(x)g(x)dx$.
Mar 21, 2023
1
Computing Jacobi Symbol without factoring. $\left(\frac{4764}{4987}\right)$ and $\left(\frac{-345}{5461}\right)$
Feb 29
1
Suppose $H_1$ and $H_2$ are subgroups of $G$. Suppose $a_1$ and $a_2$ are two elements of $G$ such that $a_1H_1 = a_2H_2$. Prove that $H_1 = H_2$.
Mar 12
0
Proof that $P(E \mid E \cup F) \geq P(E \mid F)$?
Feb 16, 2023