A researcher is developing a linear model to predict risk of developing cancer. They find the following linear model. risk_in_percent = 3.5*cigarettes_per_day + 0.2*age - 0.05*exercise_minutes_per_day Which of the following is true about this linear model? (Select all that apply) 7 Exercise is less important than age in predicting risk 7 Quitting smoking reduces your risk of cancer 7 Acne-year increase in age increases the risk of cancer by 0.2% 7 Smoking one more cigarette per day increases risk of cancer by 3.5% assuming equal age and exercise. 7 A 65-year old that smokes 5 cigarettes per day and never exercises has a 15% chance of having cancer