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USE R AND SHOW CODES!! 3.a. In 1988, 71% of 15-44 year old women who have...

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USE R AND SHOW CODES!!

3.a. In 1988, 71% of 15-44 year old women who have ever beenmarried have used some form of contraception. What is theprobability that, in a sample of 200 women in these childbearingyears, fewer than 120 of them have used some form ofcontraception?

3.b. About 1 percent of women have breast cancer. A cancerscreening method can detect 80 percent of genuine cancers with afalse alarm rate of 10 percent. What is the probability that womenproducing a positive test result really have breast cancer?

Please when answering the question, attach a screenshot of theanswers and codes from R! Thank you

Answer & Explanation Solved by verified expert
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3aWe can use the built in    See Answer
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