It could possibly be mental because it has to do what you believe in but it could also be social because you need your parents and peers/ culture to define who you are and what you choose to be
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%
Stay active. Regular exercise is good for your physical and emotional health. ...
Don't drink alcohol. Alcohol is a natural sedative. ...
Stop smoking. ...
Ditch caffeine. ...
Get some sleep. ...
Meditate. ...
Eat a healthy diet. ...
Practice deep breathing.