New posts in random-variables

Expectation of the min of two independent random variables?

probability probability-distributions random-variables uniform-distribution

The product of a normal and Rademacher variables, independent from each other

probability random-variables normal-distribution correlation

If $Var(X)=0$ then is $X$ a constant?

probability-theory random-variables

Is there a *simple* example showing that uncorrelated random variables need not be independent?

probability-theory probability-distributions random-variables examples-counterexamples random

Uncorrelated but not independent random variables

probability random-variables correlation

Show that $E(X)=\int_{0}^{\infty}P(X\ge x)\,dx$ for non-negative random variable $X$

probability-theory random-variables

Mean and variance of Squared Gaussian: $Y=X^2$ where: $X\sim\mathcal{N}(0,\sigma^2)$?

probability random-variables

Could my simple iterative algorithm for generating random numbers be favouring digits of value 0?

random-variables algorithms computer-science random algorithmic-randomness

Why is the roll of a die considered random?

probability random-variables random

Understanding proof that $P(X=0) \leq \frac{Var(X)}{E(X^2)}$

probability-theory random-variables variance

density of $X^2$ when $X$ has uniform $[-1, 2]$ distribution

probability probability-distributions random-variables uniform-distribution density-function

"Random" generation of rotation matrices

random-variables rotations

how to derive the mean and variance of a Gaussian Random variable?

probability probability-theory random-variables

Cutting out a circle using circles

probability geometry measure-theory random-variables recreational-mathematics

Correlated joint normal distribution: calculating a probability

probability probability-theory random-variables normal-distribution

Variance of geometric distribution without replacement

probability probability-distributions random-variables expected-value variance

Bounds on difference of expectations vs expectation of difference

probability-theory random-variables lebesgue-integral expected-value

Sum of two independent binomial variables

random-variables binomial-distribution

What does the value of a probability density function (PDF) at some x indicate?

probability statistics random-variables

Does this summation $ \sum_{x=a}^b \frac{p(1-p)^x}{(1-p)^a-(1-p)^b} $ equal 1?

probability statistics summation random-variables