23/Jan Math RECALL-Best gmat prep 2022(4)

WHAT IS RECALL?

RECALL is real exam questions according to latest examinee’s recall (REQALER).

For a feature X, the probability of X feature in the sample but judged as negative is 3%, the probability of no X feature but judged as positive is 5%, the probability of X is 8%, and there is no X among those judged to be positive. What is the probability (not sure if this is the question, the answer should be 3)

How many kinds of xyz are asked, the answer is 25