Y  N
The two-tailed P value is Non un numero reale (About 1 probability on Non un numero reale)

Pleft= Non un numero reale     Pright= Non un numero reale
The P value answers this question: If the theory that generated the expected values were correct, what is the probability of observing such a large discrepancy (or larger) between observed and expected values? A small P value is evidence that the data are not sampled from the distribution you expected.

Probabilità Condizionata