2 ms·
In quantum mechanics, the measurement and observation are two sides of the same coin, and the sample space is _defined_ by the random variable (observable) of i
by jhrmnn 2y ago
In quantum mechanics, the measurement and observation are two sides of the same coin, and the sample space is _defined_ by the random variable (observable) of interest, so it makes a little less sense to separate the two. (There is no hidden observation-independent sample space.)
- trueismywork 2y agoIt still makes sense to separate them when thinking about theory.
- elbear 2y agoCan you explain why? Because I still don't get the point the article is trying to make. To clarify what I do understand: so you have the variable, like height, and all its possible values along with their probabilities (that's the distribution, if I understand things right). The distribution represents a big part of what the variable is, although I realise the variable maybe has other attributes too (none comes to mind right now though).
- jhrmnn 2y agoThe article makes the point that the random variable map and the underlying sample distributions can change independently. That’s just not the case in quantum mechanics.