Mr. Nguyễn Minh Khiêm wants to know whether cholesterol content (mg/dl) in blood is influenced by age (year), weight (kg), and blood pressure (mmHg). In TDTU, 10 healthy adults were randomly selected, and the result shows below. (2đ)(a) Please show multiple regression line among age,weight, blood pressure, and cholesterol content.(b) Interpret r2 among this line.
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