Answer:
Probability of tractor do not start = 7.67%
Explanation:
Given data:
Probability of not start at red = 6%
Probability of not start at white = 11%
Probability of not start at Blue = 8%
Percentage of tractors produced in red line = 48%
Percentage of tractors produced in white line = 31%
hence Percentage of tractors produced in white line = 1 - 0.48 - 0.31 = 0.21
Probability of tractor do not start 
Probability of tractor do not start = 0.0288 + 0.0231 + 0.0248 = 0.0767
Probability of tractor do not start = 7.67%
Heart failure, sometimes known as congestive heart failure, occurs when your heart muscle doesn't pump blood as well as it should. Certain conditions, such as narrowed arteries in your heart (coronary artery disease) or high blood pressure, gradually leave your heart too weak or stiff to fill and pump efficiently.
Stress is an inevitable part of life. If stress is just in small doses, it can be of help yet if it would be big already affecting one's physical and mental function then it becomes dangerous. Having too much stress can give negative feelings such as anger and depression leading then to be at risk of having health problems such as headaches, high blood pressure, heart problems,stroke and sometimes death which then Sammy can have since he is experiencing a lot of stress at his job.
If you're registering a car you bought, you'll need: Proof of ownership in the form of Manufacturer Certificate of Origin (MCO) or Manufacture Statement of Origin (MSO) or Pennsylvania Certificate of Title. Application for Certificate of Title (Form MV-1 — not available online) Driver's license.
