Yes, that's it. It is just that some of the tests are much more expensive, to the point that I won't be able to do them routinely,but others wwhich are quick and easy to perform might not give me the necessary information.
The value of a test A for learning about B is measured by the mutual information I(A;B). The tradeoff between this and how easy the test is to perform is left up to you.
Here is a brief overview of the subject. As far as notation goes: I want to distinguish the test A from its outcomes, which I will denote a and -a.
The information content I(a) from an outcome given by the formula I(a) = - log Pr[a]. (The log is often taken to be base 2, in which case the units of information are bits.) The formula is motivated by our desire that if tests A1, A2 are indep...
I think it's past time for another Stupid Questions thread, so here we go.
This thread is for asking any questions that might seem obvious, tangential, silly or what-have-you. Please respect people trying to fix any ignorance they might have, rather than mocking that ignorance.