Good answer. I got a bit confused because Z has two meanings: “ball labelled Z was observed” (data), and “ball came from urn Z” (hypothesis). John’s model can assign zero probability to data than could possibly be observed, and that’s the big no-no.
Good answer. I got a bit confused because Z has two meanings: “ball labelled Z was observed” (data), and “ball came from urn Z” (hypothesis). John’s model can assign zero probability to data than could possibly be observed, and that’s the big no-no.