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Expectation
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Expected Value of Square Root of Poisson Random Variable
August 1st, 2022
probability-distributions
probability
poisson-distribution
expectation
probability-theory
Expected number of die rolls to get 6 given that all rolls are even.
August 1st, 2022
expectation
probability
conditional-expectation
Expectation number of cycles in a Erdős–Rényi random directed graph $G(n,p)$
August 1st, 2022
expectation
graph-theory
probability
random-graphs
random
Rolling a die until two rolls sum to seven
April 21st, 2020
probability
dice
expectation
Calculate expectation of a geometric random variable
August 1st, 2022
probability
expectation
What's the expected number of times I have to roll two die until they both sum $7$?
August 1st, 2022
dice
expectation
probability
Expected value problem with cars on a highway
August 1st, 2022
expectation
contest-math
combinatorics
supremum of expectation $\le$ expectation of supremum?
July 19th, 2020
supremum-and-infimum
expectation
probability
proof-verification
convex-analysis
Proving $E[X^4]=3σ^4$
August 1st, 2022
normal-distribution
statistics
expectation
Question on the 'Hat check' problem
August 1st, 2022
random-variables
probability-theory
expectation
probability
Prove that $\Bbb{E}(|X-Y|) \le \Bbb{E}(|X+Y|)$ for i.i.d $X$ and $Y$
August 1st, 2022
probability-theory
inequality
expectation
Knight returning to corner on chessboard -- average number of steps
December 26th, 2020
expectation
markov-chains
combinatorics
probability
Number of moves necessary to solve Rubik's cube by pure chance
August 1st, 2022
expectation
rubiks-cube
probability
If a 1 meter rope is cut at two uniformly randomly chosen points, what is the average length of the smallest piece?
August 1st, 2022
probability
expectation
what is the difference between average and expected value?
August 1st, 2022
probability
expectation
average
Would you ever stop rolling the die?
March 8th, 2020
gambling
probability
discrete-mathematics
expectation
Choose a random number between $0$ and $1$ and record its value. Keep doing it until the sum of the numbers exceeds $1$. How many tries do we need?
August 1st, 2022
expectation
probability
probability-theory
I roll a die repeatedly until I get 6, and then count the number of 3s I got. What's my expected number of 3s?
August 1st, 2022
expectation
probability
A disease spreading through a triangular population
August 1st, 2022
graph-theory
probability
combinatorics
asymptotics
expectation
Expected number of unpecked chicks - NYT article
August 1st, 2022
probability
expectation
Formal definition of conditional probability
August 1st, 2022
probability-distributions
measure-theory
expectation
conditional-probability
probability-theory
On average, how many times must I roll a dice until I get a $6$?
August 1st, 2022
probability
dice
expectation
Probability of Coin toss With Poisson Distribution
June 5th, 2021
probability
poisson-process
expectation
random-variables
probability-distributions
Mean value of minimum of binomial variables
February 8th, 2020
binomial-coefficients
expectation
probability
Expected value of $\sin(X)$, where $X$ is a Cantor random variable
August 1st, 2022
expectation
probability-theory
Expectation and variance of the Pareto distribution
April 5th, 2020
random-variables
probability
probability-theory
variance
expectation
convergence in mean square implies convergence of variance
August 1st, 2022
probability
expectation
Prove that the expectation of residual sum of squares (RSS) is equal to $\sigma^2(n-2)$
August 1st, 2022
sums-of-squares
regression
expectation
Proof: Product of Expectation of two independent random variables!
August 1st, 2022
probability
random-variables
expectation
Expected number of draws to find a match
August 1st, 2022
probability
expectation
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