Question

among fatal plane crashes that occurred during the past 70 years, 263 were due to pilot error, 92 were due to other human error, 573 were due to weather, 585 were due to mechanical problems, and 56 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\trelative frequency
pilot error\t
other human error\t
weather\t
mechanical problems\t
sabotage\t
(round to one decimal place as needed.)

Explanation:

Step1: Calculate total number of crashes

$263 + 92+573 + 585+58=1571$

Step2: Calculate relative frequency for pilot - error

Relative frequency of pilot error = $\frac{263}{1571}\times100\%\approx16.7\%$

Step3: Calculate relative frequency for other human - error

Relative frequency of other human error = $\frac{92}{1571}\times100\%\approx5.9\%$

Step4: Calculate relative frequency for weather

Relative frequency of weather = $\frac{573}{1571}\times100\%\approx36.5\%$

Step5: Calculate relative frequency for mechanical problems

Relative frequency of mechanical problems = $\frac{585}{1571}\times100\%\approx37.2\%$

Step6: Calculate relative frequency for sabotage

Relative frequency of sabotage = $\frac{58}{1571}\times100\%\approx3.7\%$

Answer:

Cause	Relative Frequency
Other human error	5.9%
Weather	36.5%
Mechanical problems	37.2%
Sabotage	3.7%

The most serious threats to aviation safety are mechanical problems and weather, as they have the highest relative frequencies. To address mechanical problems, regular and thorough aircraft maintenance can be carried out, along with strict pre - flight and post - flight inspections. For weather - related issues, better weather forecasting systems can be developed, and pilots can be trained to handle adverse weather conditions more effectively.