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ffffffMaryann is testing the effectiveness of a new acne medication. There are 100 people with acne in the study. Fifty-ve patients received the acne medication,
\f\f\f\f\f\fMaryann is testing the effectiveness of a new acne medication. There are 100 people with acne in the study. Fifty-ve patients received the acne medication, and 45 other patients did not receive treatmer'rt. Thirty ofthe patients who received the medication reported clearer skin at theend of the study. Twenty-two of the patients who did not receive medication reported clearer skin at the end of the study. What is the probability that a patient cho sen at random from this study took the medication. given that they reported clearer skin? {5 paints) \f\fa. (08.05 MC) A hospital gives a survey to all surgical patients asking them to rate the quality of their hospital experience. One month after surgery, the hospital contacts the patients again to ask if there were anyI complications irom the surgery Last year. the results of the surveys showed that ofthe patients who had a poor hospital experience. 90% had post-surgical complications. What conclusion can be drawn from this study? {5 points) O Poor hospital experiences cause post-surgical complications. 0 Some patients who have a poor hospital experience also have post-surgical complications. 0 Post-surgical complications cause poor hospital experiences. 0 Most patients who have a poor hospital experience also have post-surgical complications \f1D. (09.01 LC) What is the arc length when E = 27: and the radius is I5 cm? {5 points) 5 0 \"4cm 3 0 \"Jam \f\fThe function fit) = 5 cos(t) +7 represents the tide in Stanley Sea. It has a maximum of12 feet when time (t) is D and a minimum of 2 feet. The sea repeats this cycle every 12 hours. After tour hours, how high is the tide? {5 \f\f1iI'iI'hieh function has The smallest minimum? (5 pein'ts} 0 All three functions have the same minimum 0 fix} O six} O \"(3}
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