# Question

On a hospital staff, there are 4 dermatologists, 7 surgeons, 5 general practitioners, 3 psychiatrists, and 3 orthopedic specialists. If a doctor is selected at random, find the probability that the doctor is

a. A psychiatrist, surgeon, or dermatologist

b. A general practitioner or surgeon

c. An orthopedic specialist, a surgeon, or a dermatologist

d. A surgeon or dermatologist

a. A psychiatrist, surgeon, or dermatologist

b. A general practitioner or surgeon

c. An orthopedic specialist, a surgeon, or a dermatologist

d. A surgeon or dermatologist

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