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Mean Green Math

Mean Green Math

9 | Follower

Science

Mean Green Math

16.05.2025

Solving Problems Submitted to MAA Journals (Part 7g) – Mean Green Math

The following problem appeared in Volume 131, Issue 9 (2024) of The American Mathematical Monthly. Let $latex X$ and $latex Y$ be independent normally distributed random variables, each with its own mean and variance. Show that the variance of $latex X$ conditioned on the event $latex X>Y$ is smaller than the variance of $latex X$…

Mean Green Math

24.05.2025

Solving Problems Submitted to MAA Journals (Part 7h) – Mean Green Math

The following problem appeared in Volume 131, Issue 9 (2024) of The American Mathematical Monthly. Let $latex X$ and $latex Y$ be independent normally distributed random variables, each with its own mean and variance. Show that the variance of $latex X$ conditioned on the event $latex X>Y$ is smaller than the variance of $latex X$…

Mean Green Math

31.05.2025

Solving Problems Submitted to MAA Journals (Part 7i) – Mean Green Math

The following problem appeared in Volume 131, Issue 9 (2024) of The American Mathematical Monthly. Let $latex X$ and $latex Y$ be independent normally distributed random variables, each with its own mean and variance. Show that the variance of $latex X$ conditioned on the event $latex X>Y$ is smaller than the variance of $latex X$…

Mean Green Math

06.06.2025

Roman numerals – Mean Green Math

Source: https://xkcd.com/2637/