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Time to first success of an event-intersection

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#probability #combinatorics #statistics #random-variables
153
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What is the probability density function of $X_1+X_2$?

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#probability #random-variables #convolution #density-function
230
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Do the derivatives of a moment generating function evaluated at 0 uniquely determine the distribution of a random variable?

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#probability #probability-theory #probability-distributions #random-variables #moment-generating-functions
584
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In algebra of random variables is $X + X \neq 2X$?

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#probability #random-variables #random-functions
87
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Finding CDFs of Transformations of Uniform RV

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#probability #probability-distributions #random-variables #uniform-distribution
991
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Calculating the probability density function of the sum of two independent random variables that have $\frac{1}{2}e^{-|x|}$ as a density function

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#probability #measure-theory #random-variables #convolution
71
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Showing independence of a sequence of random variables

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#probability-theory #random-variables #independence
144
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discrete random variables (vectors) and independence

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#probability #random-variables #independence
179
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$E(\sum\limits_{i=1}^n a_i\bar{\xi}_i)^4\leq C n^{5/2}$?

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#probability #probability-theory #inequality #random-variables
114
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Variance of Random Variable in a Coin Toss

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#probability #random-variables #covariance #variance
1k
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I need help to check if my solution to an expected value of discrete random variable problem is correct.

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#statistics #discrete-mathematics #random-variables
175
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Understanding of conditional expectation as a random variable

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#probability #probability-theory #random-variables #expectation #conditional-expectation
28
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$E[X] = 0 \implies |E[XI_{\{|X|>n\}}]| = |E[XI_{\{|X|\leq n\}}]|$

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#probability-theory #random-variables #expectation
295
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Sigmoid functions for a biased random number generator

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#random-variables #curves #inverse-function
49
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Prove that this probabilty equation is impossible

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#probability #random-variables

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