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Mathematics 16 Online
OpenStudy (anonymous):

You would like to estimate the prevalence of a disease. You randomly sample 10 people from the population of interest and 4 of them have the condition. Using a Beta prior with α and β both being 10, what is the posterior mean prevalence closest to? .60 .40 .90 .80 .50 .70 .10 .20 .30

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