SOA Exam P Sample Question 212
Study guide: Exam P-1
Patients in a study are tested for sleep apnea, one at a time, until a patient is found to have this disease. Each patient independently has the same probability of having sleep apnea. Let r represent the probability that at least four patients are tested.
Determine the probability that at least twelve patients are tested given that at least four patients are tested.
- A)
r^{11/3} - B)
r^3 - C)
r^{8/3} - D)
r^2 - E)
r^{1/3}
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