[HN Gopher] Gambler's Fallacy and the Regression to the Mean
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Gambler's Fallacy and the Regression to the Mean
Author : allthebest
Score : 15 points
Date : 2022-01-07 21:52 UTC (1 hours ago)
(HTM) web link (theness.com)
(TXT) w3m dump (theness.com)
| roenxi wrote:
| It is very annoying in business. Arguing that two outcomes are
| equally likely when one has happened many more times than the
| other is an exercise in frustration. It takes a certain level of
| courage, charisma and stubbornness to argue that there is no
| evidence that 2nd best is just as good as best when there is a
| measurable difference between two options.
|
| This is a big contributor to why markets perform so well in my
| humble opinion. People who see past the gambler's fallacy to the
| actual odds of things working get rewarded, and the people who
| assume the current leader _must_ be doing something different and
| better than the competition get punished.
|
| > When your variable disease is expressing its worst symptoms,
| you are likely to feel better in the future
|
| This is the influence of time & the healing process, not a
| regression to the mean. Symptoms in a given sickness' progression
| aren't random variables in a practical sense. It goes no symptoms
| -> bad symptoms -> lingering symptoms -> better (or permanent
| symptoms, bad luck :[ ).
| jldugger wrote:
| > Arguing that two outcomes are equally likely when one has
| happened many more times than the other is an exercise in
| frustration
|
| Are they actually equally likely though? Perhaps there comes a
| point where one must consider observed outcomes match with
| assumed probabilities.
|
| Or are you just having arguments about whether the unfavored
| outcome is 'overdue.'
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(page generated 2022-01-07 23:00 UTC)