4. (30 points) Suspension problems with a car almost always result in misalignment. However, cars may also become misaligned because too long has passed since last service (i.e. No service). Repairing front suspensions is very expensive but doing an alignment service is not and can be remedied inexpensively. One sees signs of misalignment by uneven thread-wearing the tires and/or by steering wheel pulling to the side when the car is driven. Your neighbor has gone to buy a used car. He drives a car and the steering wheel has a pull to the side when he does a test drive. When he looks at the tires, he notices that the car comes with nice and new tires that and no unusual thread-wear. The used car salesman tells your neighbor that if he takes the car right then, he can throw in a $1000 discount. Considering the CPTs shown below, what are the chances that this car has a suspension problem and one should stay away from it? Let: S = Suspension problem, T = Too long since last service, M = Misalignment U = Uneven thread-wear, W = steering Wheel pulling, CPTS: . P(S) 0.3 P(T) 0.75 M | P(U) 1 T 0.98 F 0.8 M T F PW) 0.8 0.1 ST PIM) TT 0.98 TF 0.8 FT 0.6 F F 0.05 4. (30 points) Suspension problems with a car almost always result in misalignment. However, cars may also become misaligned because too long has passed since last service (i.e. No service). Repairing front suspensions is very expensive but doing an alignment service is not and can be remedied inexpensively. One sees signs of misalignment by uneven thread-wearing the tires and/or by steering wheel pulling to the side when the car is driven. Your neighbor has gone to buy a used car. He drives a car and the steering wheel has a pull to the side when he does a test drive. When he looks at the tires, he notices that the car comes with nice and new tires that and no unusual thread-wear. The used car salesman tells your neighbor that if he takes the car right then, he can throw in a $1000 discount. Considering the CPTs shown below, what are the chances that this car has a suspension problem and one should stay away from it? Let: S = Suspension problem, T = Too long since last service, M = Misalignment U = Uneven thread-wear, W = steering Wheel pulling, CPTS: . P(S) 0.3 P(T) 0.75 M | P(U) 1 T 0.98 F 0.8 M T F PW) 0.8 0.1 ST PIM) TT 0.98 TF 0.8 FT 0.6 F F 0.05