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 assumption is

Difference between logarithm of an expectation value and expectation value of a logarithm Ask Question Asked 14 years, 11 months ago Modified 10 years, 11 months ago

How to calculate the expectation of XY X Y? Ask Question Asked 14 years ago Modified 1 year, 7 months ago

Expectation of an exponential function Ask Question Asked 13 years, 1 month ago Modified 9 years, 8 months ago

Nov 21, 2025 · For a standard normal distribution (mean zero, standard deviation 1), the difference between two samples is also normal with mean zero, standard deviation $\sqrt2$. To get the …

I know that if X X were distributed as a standard normal, then X2 X 2 would be distributed as chi-squared, and hence have expectation 1 1, but I'm not sure about for a general normal.

Oct 20, 2018 · Hi im trying to understand conditional expectation and conditional probability based on sigma algebras. Therefore an answer in that flavour would be most useful. So in a physical sense I …

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Nov 17, 2012 · This example ignores the loading of absolute-summability in the def'n of expected value of a random variable taking countably infinite values. Without such loading, "expected value of a …

May 1, 2019 · I thought the expectation of a product is the product of expectations, but this is not what has happened. Someone we have managed to get an extra expectation out of the front. Any ideas? …