Drug Placebo Total
Symptoms improved 270 120 390
No improvement 530 280 810
...
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Mathematics, 26.03.2021 14:10 jordendoctorwho
Drug Placebo Total
Symptoms improved 270 120 390
No improvement 530 280 810
Total 800 400 1200
One patient is selected at random.
What is the probability that that the patient was administered the drug and had their symptoms show signs of improvement ?
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Answers: 2
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