
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 assumption is
Intuitive explanation of the tower property of conditional expectation
May 27, 2011 · I understand how to define conditional expectation and how to prove that it exists. Further, I think I understand what conditional expectation means intuitively. I can also prove the …
Difference between logarithm of an expectation value and expectation ...
Difference between logarithm of an expectation value and expectation value of a logarithm Ask Question Asked 14 years, 10 months ago Modified 10 years, 10 months ago
Calculate expectation of a geometric random variable
Dec 13, 2013 · 2 A clever solution to find the expected value of a geometric r.v. is those employed in this video lecture of the MITx course "Introduction to Probability: Part 1 - The Fundamentals" (by the way, …
Expectation of an absolute value - Mathematics Stack Exchange
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 …
Expectation of sample variance - Mathematics Stack Exchange
Feb 8, 2021 · Expectation of sample variance Ask Question Asked 4 years, 10 months ago Modified 1 year, 7 months ago
The expectation of absolute value of random variables
Nov 7, 2013 · The expectation of absolute value of random variables Ask Question Asked 12 years, 1 month ago Modified 6 years, 8 months ago
Newest 'conditional-expectation' Questions - Mathematics Stack …
Nov 21, 2025 · For every question related to the concept of conditional expectation of a random variable with respect to a $\sigma$-algebra. It should be used with the tag (probability-theory) or (probability), …
probability - Expectation, variance and indicator variables ...
Feb 17, 2015 · Expectation, variance and indicator variables Ask Question Asked 10 years, 9 months ago Modified 2 years, 9 months ago
expectation - Proof for Mean of Geometric Distribution - Mathematics ...
May 19, 2015 · How did you reformulate the density function into an arithmetico-geometric series? Otherwise, the result for the sum of geometric series is very well known and it is not unusual to …