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Dilip Sarwate

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145
Why is Euclidean distance not a good metric in high dimensions?
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106
Scam? Phone call from "Department of Social Security" asking me to call back
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79
How can I calculate $\int^{\infty}_{-\infty}\Phi\left(\frac{w-a}{b}\right)\phi(w)\,\mathrm dw$
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71
Why does the correlation coefficient between X and X-Y random variables tend to be 0.7
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66
Variance of product of multiple independent random variables
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63
Understanding the Matched Filter
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58
Does the autocorrelation function completely describe a stochastic process?
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56
How can I prove mathematically that the mean of a distribution is the measure that minimizes the variance?
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53
Why does correlation matrix need to be positive semi-definite and what does it mean to be or not to be positive semi-definite?
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51
Why is P(A,B|C)/P(B|C) = P(A|B,C)?
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50
What is the distinction between ergodic and stationary?
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49
Brain teaser: How to generate 7 integers with equal probability using a biased coin that has a pr(head) = p?
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49
Covariance of a random vector after a linear transformation
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47
Why does the Cauchy distribution have no mean?
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44
Is putting money in a 401(k) plan risky?
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44
Does the reciprocal of a probability represent anything?
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42
Bound for the correlation of three random variables
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40
Prove that if $g^2=e$ for all $g$ in $G$ then $G$ is Abelian.
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39
What is the distribution of the sum of non i.i.d. gaussian variates?
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39
Proof of upper-tail inequality for standard normal distribution
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39
Flipping the impulse response in convolution
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38
Sum of independent Gamma distributions is a Gamma distribution
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34
Variance of White Gaussian Noise
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33
difference between conditional probability and bayes rule
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31
What are i.i.d. random variables?
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30
Effect of switching response and explanatory variable in simple linear regression
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30
A generalization of the Law of Iterated Expectations
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29
If random variables are drawn from an identical distribution, why doesn't this guarantee they are independent?
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28
Why is the FFT "mirrored"?
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28
If low-cost index funds are considered the best investment, why are there so many high-cost, managed funds?
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