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Random-variables
New post in Random-variables
Probability density function of dependent random variable
December 7th, 2022
random-variables
probability
density-function
probability-theory
probability-distributions
Find PDF of $X-Y$
July 23rd, 2022
convolution
probability
random-variables
If $X$ is a non negative random variable with $E[X]=25$, what can be said about $E[X^3]$, $E[\sqrt{X}]$, $E[\ln X]$, and $E[e^{-X}]$?
October 28th, 2022
expectation
random-variables
probability
A fair coin is tossed until both heads and tails apear
August 1st, 2022
probability
random-variables
Let $X$ be a standard normal random variable and $Y = X^2$.
August 1st, 2022
probability
conditional-expectation
normal-distribution
random-variables
covariance
Probability of one of the 3 independent uniform random variable being greater than rest of two.
September 27th, 2020
probability
random-variables
stochastic-processes
probability-distributions
probability-theory
Explanation of linearity of expectation
April 6th, 2020
expectation
random-variables
If X,Y and Z are independent, are X and YZ independent?
July 28th, 2020
independence
probability-theory
random-variables
PDF of function of uniform random variable
July 14th, 2020
probability-distributions
uniform-distribution
random-variables
Find the density function of $Z=X+Y$ when $X$ and $Y$ are standard normal
July 20th, 2020
convolution
probability
random-variables
finding out the probability density of a random process
September 10th, 2020
probability-distributions
probability
probability-theory
random-variables
random-functions
When to use likelihood ratio test?
January 21st, 2020
statistics
random-variables
regression
Joint density of two exponential random variables
January 12th, 2020
probability-theory
probability-distributions
random-variables
exponential-distribution
Probability Density Function of non decreasing function
May 9th, 2020
random-variables
probability
functional-analysis
statistics
probability of playing music player on shuffle and listening to every song.
August 1st, 2022
probability
random-variables
Calculating average distance of the dart from a bullseye, with two different Gaussian random variables.
November 9th, 2020
random-variables
probability-distributions
Fine the value of k such that this game is fair (E(X) = 0)
October 20th, 2020
probability
card-games
random-variables
statistics
Existence proof for a random variable $X$ where $\operatorname{E}[X]$ exists, and $\operatorname{E}[X^2]$ doesn't
August 1st, 2022
expectation
random-variables
probability
Distribution of the sum of squares of normal random variables
August 1st, 2022
normal-distribution
statistics
random-variables
Pseudo-inverse of the Cumulative Distribution Function of $X$
August 1st, 2022
pseudoinverse
probability
probability-distributions
random-variables
closed-form
Determine the upper and lower bounds of the expected value of a random variable
March 3rd, 2020
probability
random-variables
What distribution does X/(X+Y), follow, when X and Y are gamma distributed. Prove that the R.V is independent of (X+Y)
February 14th, 2020
statistics
random-variables
probability
How to compute the probability that X is within 1 standard deviation of its mean for pareto?
March 16th, 2020
random-variables
statistics
probability-distributions
Conditional expectation from two independent random variables
August 1st, 2022
random-variables
conditional-expectation
probability
probability-theory
Double integral of Dirac Delta Function
April 30th, 2020
dirac-delta
random-variables
Show Marsaglia polar method produce the standard normal distribution
October 26th, 2020
probability
random-variables
normal-distribution
How to find the PMF of a discrete random variable that is a function of another random variable and a positive number?
September 30th, 2020
random-variables
probability
functions
probability-distributions
Expected number of Failures within K trials for Binomial RV
December 5th, 2020
probability
binomial-distribution
expected-value
conditional-probability
random-variables
Convolutions: Let U~Unif(0,1) and X~Expo(1), independently. Find the PDF of U +X.
December 9th, 2020
exponential-distribution
uniform-distribution
convolution
random-variables
How to calculate E[Xi Xj]?
May 24th, 2020
probability-theory
random-variables
variance
expected-value
covariance
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