Answer Happy

16. The type of medical care a patient receives may vary with the age of the patient. A large study of women who had a breast lump investigated whether or not each woman received a mammogram and a biopsy when the lump was discovered. Here are some probabilities estimated by the study. The entries in the table are the probabilities that both of two events occur; for example: 0.312 is the probability that a patient is under 65 years of age and the tests were done. Donc a. What is the probability that a patient in this study is under Yes 65? Age Under .312 .124 65 Age 65 and .365 Over b. Is 65 or over? Tests No .199 c. What is the probability that the tests were done for a patient? That they were not done? d. Are the events A = (patient was 65 or older) and B-(the tests were done) independent? Were the tests omitted on older patients more or less frequently that would be the case if testing were independent of age?