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The variance of the sum of $n$ random variables

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#variance
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A New Formula for Variance?

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#probability #statistics #variance
139
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Balls and Bins Varaince

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#random-variables #expected-value #variance #balls-in-bins
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Draw two numbers, A and B, from a set {1, 2, 3, 4, 5, 6}. A and B are drawn sequentially without replacement. Find the variance Var(3A+B).

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#probability #conditional-probability #variance #dice #card-games
106
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The James-Stein estimator seems absurd to me

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#normal-distribution #variance #parameter-estimation #paradoxes
613
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Subtracting a number (expected value) from a function (random value)

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#probability-theory #functions #variance
338
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Poisson distribution of tails on a coin.

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#probability #expected-value #variance #poisson-distribution
138
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$X$ is uniform, $Y$ is binomial. When is $Var(X)>Var(Y)$?

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#probability #variance #uniform-distribution #binomial-distribution
48
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LS estimator variance derivation

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#expected-value #variance #parameter-estimation
47
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Finding the expected value and variance of binominal distribution with the help of Bernoulli distribution

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#statistics #expected-value #variance #binomial-distribution #bernoulli-distribution
50
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Finding mean and variance with only probabilities $x>n$ and $x>m$

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#probability #variance #density-function #means
130
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Pareto Distribution with parameters α and β: Prove that the variance does not exist if β≤2.

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#statistics #proof-writing #variance
28
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Estimator variance problem

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#variance #parameter-estimation
51
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Finding when mean equals variance for Weibull distribution

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#statistics #probability-distributions #gamma-function #variance #means
100
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The Variance of sum of two random variables

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#probability #probability-distributions #expected-value #variance #covariance

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