herb steinberg's user avatar
herb steinberg's user avatar
herb steinberg's user avatar
herb steinberg
  • Member for 6 years, 5 months
  • Last seen more than a month ago
10 votes
Accepted

The integral of a function multiplied with an unbounded function converges if the product is a bounded function

8 votes

Probability that the ball drawn from $n$th urn is white

6 votes
Accepted

Show that $S_n=0$ for infinitely many $n$

6 votes
Accepted

Proof that any number is equal to $1$

5 votes
Accepted

maximum and minimum value of $\frac{x^2+y^2}{x^2+xy+4y^2}$

5 votes

Why $\{ \lambda x + (1-\lambda){y}\;\lvert\; \lambda \in [0,1] \}$ represents the line segment between $x,y$?

5 votes

Definition of $\binom{\frac{1}{2}}{1}$?

5 votes
Accepted

Methods to derive a closed form for $I_n=\int_0^\infty \frac{\ln^n(x+1)-\ln^n(x)}{x+1}dx$

5 votes
Accepted

Is $Y_n$ a Markov chain?

4 votes

Bivariate random variables that are different even though the corresponding univariate r.v. are the same

4 votes

Improper integrals with bounds 0 to infinity

4 votes
Accepted

On convergence of $ \int_{0}^{+\infty} \frac{d x}{\left(x^{2}+1\right) \cdot \sin ^{2 / 3}(x)} $

4 votes
Accepted

Why does the empirical standard deviation $\hat{\sigma}$ satisfy $E\hat{\sigma} = E\lvert X^{i}-E[X^{i}]\rvert$

4 votes
Accepted

Need help to check alternating series criterion

4 votes

combinatorics problem - sum of integers

4 votes

Trying to prove that if $n^2=3q$, then $n=3p$ for $n,p,q \in\mathbb{N}$.

4 votes

Conditional probability question involving balls w/o replacement

4 votes

Computing $\lim_{s \to \infty} \int_0^1 \left|\cos(sx)\right| \, dx$

4 votes
Accepted

How to find the definite integral of cube of a function whose definite integral is known?

4 votes

Derive the exponential distribution function

4 votes
Accepted

Breakdown of variance of sums with covariance term

3 votes

Radius of convergence of power series where power increases by increments of 2

3 votes

Proving $[0,1]\times\{0\} \subseteq\mathbb{R^2}$ is closed.

3 votes

Cauchy Principal Value - nomenclature question

3 votes

Simple proof solution?

3 votes
Accepted

How near is the Riemann sum (without limit) to the definite integral

3 votes

Can we represent an improper integral as $\int_{-\infty}^{\infty} f(x)\,dx = \lim_{a \to \infty} \int_{-a}^a f(x)\,dx$?

3 votes

Directly Calculating Birthday Paradox Probabilites

3 votes

Variance of $X_n$ if we have convergence in probability for a random variable with $|X_n| >1$

3 votes

Is an infinite set with no limit point unbounded in an arbitrary metric space?

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