Among fatal plane crashes that occurred during the past 70 ​years, 332 were due to pilot​ error, 63 were due to other human​ error, 265 were due to​ weather, 290 were due to mechanical​ problems, and 478 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? Complete the relative frequency distribution below.   Cause Relative Frequency Pilot error nothing​% Other human error nothing​% Weather nothing​% Mechanical problems nothing​% Sabotage nothing​% ​(Round to one decimal place as​ needed.) What is the most serious threat to aviation​ safety, and can anything be done about​ it?     A. Weather is the most serious threat to aviation safety. Weather monitoring systems could be improved.   B. Mechanical problems are the most serious threat to aviation safety. New planes could be better engineered.   C. Sabotage is the most serious threat to aviation safety. Airport security could be increased.   D. Pilot error is the most serious threat to aviation safety. Pilots could be better trained.

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Q: Among fatal plane crashes that occurred during the past 70 ​years, 277 were due to pilot​ error, 61…

A: Among fatal plane crashes that occurred during the past 70 years, 277 were due to pilot​ error, 61…

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Q: Among fatal plane crashes that occurred during the past 70 ​years, 577 were due to pilot​ error, 86…

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