What is the probability that a randomly chosen woman

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If a woman takes an early pregnancy test, she will either test positive, meaning that the Suppose that if a woman really is pregnant, there is a 98% chance that she will test test says she is pregnant, or test negative, meaning that the test says she is not pregnant. Positive. Also, suppose that if a woman really is not pregnant, there is a 99% chance that she will test negative. Use the probability tree diagram to answer the following questions:

(a) Suppose that 1,000 women take early pregnancy tests and that 100 of them really are pregnant. What is the probability that a randomly chosen woman from this group will test positive?

(b) Suppose that 1,000 women take early pregnancy tests and that 50 of then really are pregnant. What is the probability that a randomly chosen woman from this group will test positive?

Reference no: EM132141088

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