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- 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
- 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 get it right ? If yes, then what is the point of introducing a new term ? Why not just stick with the average value of the distribution ?
- expectation - Expected Number of coin flips for 2 consecutive heads for . . .
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 equal Then the exp
- Expected Value of a Binomial distribution? - Mathematics Stack Exchange
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 N N objects, of which G G are good The same argument shows that the expected number of good objects in the sample is nG N n G N
- Proof variance of Geometric Distribution - Mathematics Stack Exchange
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 handwritten proof here
- measure-theoretic definition of expectation - Mathematics Stack Exchange
measure-theoretic definition of expectation Ask Question Asked 10 years, 5 months ago Modified 10 years, 5 months ago
- Order statistics of i. i. d. exponentially distributed sample
I have been trying to find the general formula for the k k th order statistics of n n i i d exponential distribution random variables with mean 1 1 And how to calculate the expectation and the variance of the k k th order statistics Can someone give me some general formula? It would be nice if there is any proof
- The expectation of an expectation - Mathematics Stack Exchange
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 assumption is
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