Section 2.1 Homework

7. Among fatal plane crashes that occurred during the past 55 ​years, 223 were due to pilot​ error, 64 were due to other human​ error, 218 were due to​ weather, 365 were due to mechanical​ problems, and 137 were due to sabotage.   

Construct the relative frequency distribution. What is the most serious threat to aviation​ safety, and can anything be done about​ it?

What is the most serious threat to aviation​ safety, and can anything be done about​ it?

1. Mechanical problems are the most serious threat to aviation safety. New planes could be better engineered.
2. Weather is the most serious threat to aviation safety. Weather monitoring systems could be improved.
3. Pilot error is the most serious threat to aviation safety. Pilots could be better trained.
4.  Sabotage is the most serious threat to aviation safety. Airport security could be increased.