Tests for allergies can be done in multiple ways. One way is through a blood test. ImmunoCAP is one of such tests. About 1% of adults have peanut allergies at some level of severity. The test correctly identifies 90% of the time adults with a peanut allergy and correctly identifies those without peanut allergies 91% of the time. Suppose that POS stands for the test gives a positive result and S means that the adult really has a peanut allergy. Represent the " 90% " using notation. P(POS) P(S and POS) P(S) P(POS∣S) P(S | POS)