[944] Measurability of a RV
Richard Rosenbaum
rrosenba at andrew.cmu.edu
Sun Nov 5 06:36:00 EST 2017
Say G is a sigma algebra and F is a smaller sigma algebra contained in G.
Say X is a RV that is G-measurable.
Why is X not also F-measurable?
This idea was discussed briefly in the TA session on Friday, but I am still
a bit confused. My intuition would be that since G is larger, and X is
measurable with respect to G, then X would also be measurable with respect
to F since it is contained in G.
If anyone could share their thoughts, it would be much appreciated.
Regards,
Rich
--
Richard Rosenbaum
Master of Science in Computational Finance Candidate
Carnegie Mellon University - Class of Dec. 2018
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