Question

Among fatal plane crashes that occurred during the past 55 ​years, 619 were due to pilot​ error, 85 were due to other human​ error, 574 were due to​ weather, 566 were due to mechanical​ problems, and 524 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?

Answer 1

Relative Frequency = Observed value for each cell / Total frequency * 100

Cause Relative Frequency

Pilot Error 619

Other human error 85

Weather 574

Mechanical problems 566

Sabotage 524

Total 2368

The total frequency is 2368

The calculation of the relative frequency distribution is

Cause Relative Frequency Result

Pilot Error 619/2368 * 100 26.14%

Other human error 85/2368 * 100 3.59%

Weather 574/2368 * 100 24.24%

Mechanical problems 566/2368 * 100 23.90%

Sabotage 524/2368 * 100 22.13%

Total 100%

Conclusion: The most serious threat to aviation safety is the Pilot error as it has the highest frequency. Pilot need to be more equipped with understanding and knowledge of how to deal with unexpected event i.e. turbulence, engine failure among others..