Some patients are following a case study related to anemia. One by one, the patients were checked until they found a patient with anemia. each patient is independent and has the same probability of developing anemia. Let r be the probability that at least 5 patients have been tested for this case study. Determine the probability that at least 16 patients have been tested knowing that at least 10 have been tested.

a. 72/ 3 C. 71,5 d. 73 e. 76