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Finding covariance using $E[X]$ and $E[Y]$

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#statistics #random-variables #covariance
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How to calculate uncertanty based on the uncertanty of a data set?

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#statistics #data-analysis #error-propagation
50
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Can we conclude that the advertising technique has an impact on sales?

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#statistics #chi-squared
252
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expected value/linearity of expectation: n people & pairs

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#probability #probability-theory #statistics
44
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Lottery Probabilities

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#statistics
217
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How to interpret that "covariance measures linear dependence"?

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#statistics
790
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If $E(U|X)=0$, then $E(U)=0$?

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#statistics
290
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How to tell which groups have different means than others in a One-way Anova

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#statistics #descriptive-statistics #statistical-mechanics
76
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Convolution of two random variables with common pdf of $e^{-t}$

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#probability #statistics #probability-distributions
42
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Mean difference

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#statistics #discrete-mathematics #data-analysis
52
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Matrix equation using Choleski decomposition

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#linear-algebra #statistics #matrix-equations #matrix-decomposition #bayesian
227
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Finding no. of items in the observation, when mean is given?

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#statistics #economics
26
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How to interpret that "${\cal E}(Y|X)$ is a function of $X$"?

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#statistics
53
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Funky change in correlation

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#statistics #correlation
6.3k
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Intuition: Why chance of getting at least one ace when rolling a dice six times is not close to $1$?

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#probability #probability-theory #statistics #probability-distributions #dice

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