Please help me answer these questions. Fever For a certain drug, patients have c

Question

Please help me answer these questions. Fever For a certain drug, patients have complained about side effects of fever, cramps, dry mouth. The Venn ramps 18 10 24 diagram shows the 2 breakdown in the type of complaints from 67 patients. 4 6 Dry Mouth Ic What is the probability that a patient selected at random complained of fever or dry mouth? 1b, What are the odds that a patient selected at random only complained of one of the side effects? 2 What is the probability that a patient selected at random complained of both dry mouth and cramps? 2 If 2 patients are selected at random, what is the probability that the first only had a fever and the second only had cramps? 1b What are the odds against a patients only complaining of dry mouth? 2 If2 patients are selected at random, what is the probability that they both complained of a fever?

Explanation / Answer

1) P(Fever or dry mouth) = (24+10+4+2+6+3)/67 = 49/67 = 0.7313

2) P(Only one side effect) = (24+18+6)/67 = 0.7164

3) P(Drymouth and Cramps) = (3+2)/67 = 0.0746

4) P(1st fever and 2nd cramps) = (24/67) * (18/66) = 0.0977

5) P(not only drymouth) = 1 - P(Drymouth) = 1 - 6/67 = 0.9104

6) Pboth had fever) = (40/67)*(39/66) = 0.3528

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