(Topic: Total Probability and Bayes Theorem) A medical study is conducted on people who are tested positive for Covid-19. The study found that 31% of people have deficiency in Vitamin D, 28% have insufficiency in Vitamin D, and 41% have normal level of Vitamin D. The study also found that persons who • Have deficiency in Vitamin D are at 88% risk of dying from Covid-19. • Have insufficiency of Vitamin D are at 62% risk of dying from Covid-19. • Have normal level of Vitamin D are at 14% risk of dying from Covid-19. 1. A person who is tested positive for Covid-19 is chosen randomly, what is the probability he will die from Covid-19? 0.0868 0.5 0.5467 0.5038 2. A person who is tested positive for Covid-19 died, what is the probability he had deficiency in Vitamin D? 0.31 0 0.5415 0.2728 3. What is the probability that a person who is tested positive for Covid-19 has deficiency in Vitamin D and dies? 0.2728 0.5415 0.31 0.88
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We are given the following information: - Testee Point 40 is deficient in Vitamin D257. - Incidence of COVID-19 is 31,000. - Incidence of deficiency in Vitamin D257 is 0.87. - Incidence of dying from COVID-19 is 0.006215. - Incidence of dying from other causes is Show more…
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Total Probability and Bayes' Theorem
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