=+57. Pharmaceutical company. A U.S. pharmaceutical company is considering manufacturing and marketing a pill that will help to lower both an individual’s blood pressure and cholesterol. The company is interested in understanding the demand for such a product. The joint probabilities that an adult American man has high blood pressure and/or high cholesterol are shown in the table.

Blood Pressure Cholesterol High OK High 0.11 0.21 OK 0.16 0.52