b) Describe in words the events W, W D, W D, and W|D, and compute probabilities associated with each of these events
(c) If three people are selected at random, what is the probability that
(i) all three of them have the disease
(ii) exactly one of them has the disease?
(d) Of people with the disease, 95% react positively to a diagnostic test, as also do 8% of people without the disease. What is the probability of a person selected at random
(a) reacting positively
(b) having the disease given that he or she reacted positively?
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