Mental Health Estimates of the prevalence of Alzheimer’s disease have recently been provided by Pfeffer et al. [8]. The estimates are given in Table 3.5. (attached) Suppose an unrelated 77-year-old man, 76-year-old woman, and 82-year-old woman are selected from a community.   These are the questions I'd like help with. The solution needs to use only Stata unless done manually. Please, if you can include the reasoning and thought process behind your approach I would be so grateful. Thank you!! 3.18. What is the probability that at least one of the three people has Alzheimer’s disease? 3.22. Suppose we know two of the three people have Alzheimer’s disease. What is the conditional probability that they are both younger than 80 years of age?

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