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  1. Calculate expectation of a geometric random variable

    Calculate expectation of a geometric random variable Ask Question Asked 11 years, 7 months ago Modified 1 year, 8 months ago

  2. What is the difference between Average and Expected value?

    I have been going through the definition of expected value on Wikipedia beneath all that jargon it seems that the expected value of a distribution is the average value of the distribution. Did I …

  3. expectation - Expected Number of coin flips for 2 consecutive …

    Jul 9, 2018 · I was working on problems on expectation and found this one as a question from a well-known exam Assume that you are flipping a fair coin, i.e. probability of heads or tails is …

  4. Proof variance of Geometric Distribution - Mathematics Stack …

    May 26, 2015 · I'm not familiar with the equation input method, so I handwrite the proof. I'm using the variant of geometric distribution the same as @ndrizza. Therefore E [X]=1/p in this case. …

  5. Expected Value of a Binomial distribution? - Mathematics Stack …

    Nov 1, 2012 · The linearity of expectation holds even when the random variables are not independent. Suppose we take a sample of size n n, without replacement, from a box that has …

  6. measure-theoretic definition of expectation - Mathematics Stack …

    Feb 23, 2015 · measure-theoretic definition of expectation Ask Question Asked 10 years, 4 months ago Modified 10 years, 4 months ago

  7. The expectation of an expectation - Mathematics Stack Exchange

    Oct 21, 2020 · This may seem trivial but just to confirm, as the expected value is a constant, this implies that the expectation of an expectation is just itself. It would be useful to know if this …

  8. What is $E(X^2)$ mean in literal terms? - Mathematics Stack …

    Nov 9, 2016 · It is, in this case, the expectation of the square of the count of trials until the success. We can name this the "second raw moment", but what the heck does that mean? …

  9. expectation - What is the expected value of a probability density ...

    Jan 25, 2018 · The expected value of a function can be found by integrating the product of the function with the probability density function (PDF). What if I want to find the expected value of …

  10. Proof of $ E(XY) = E(X) E(Y) - Mathematics Stack Exchange

    Jan 29, 2019 · When two random variables are statistically independent, the expectation of their product is the product of their expectations. I found this on wikipedia : https://en ...