45. Asthma: An article in the journal Risk Analysis reported that 5.6% of a population has asthma and that on any given day, 2.7% of asthmatics suffer an asthma attack. A person is chosen at random from this population. What is the probability that this person has an asthma attack on that day?
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The article "Integrating Risk Assessment and Life Cycle Assessment: A Case Study of Insulation" (Y. Nishioka, J. Levy, et al., Risk Analysis, 2002: 1003-1017) estimates that 5.6% of a certain population has asthma, and that an asthmatic has a probability of 0.027 of suffering an asthma attack on a given day. A person is chosen at random from this population. What is the probability that this person has an asthma attack on that day?
David N.
In a population of 20 – 29 year-old males, 80% do not smoke and 20% do smoke. Of the non-smokers 15% have asthma and of the smokers 77% have asthma. A randomly selected 20 – 29 year old male from this population is selected. Find the probability that he does not have asthma GIVEN he does not smoke. Find the probability that he smokes AND has asthma. Find the probability that he has asthma. Find the probability that he smokes GIVEN he has asthma. Find the probability that he does not smoke GIVEN he has asthma
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