Question

among fatal plane crashes that occurred during the past 50 years, 506 were due to pilot error, 57 were due to other human error, 347 were due to weather, 289 were due to mechanical problems, and 306 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 33.6% other human error 3.8% weather 23.1% mechanical problems 19.3% sabotage 20.3% (round to one decimal place as needed.)

Explanation:

Step1: Calculate total number of crashes

$506 + 57+347 + 289+306=1505$

Step2: Calculate relative - frequency for pilot error

Relative frequency of pilot error=$\frac{506}{1505}\times100\%\approx33.6\%$

Step3: Calculate relative - frequency for other human error

Relative frequency of other human error=$\frac{57}{1505}\times100\%\approx3.8\%$

Step4: Calculate relative - frequency for weather

Relative frequency of weather=$\frac{347}{1505}\times100\%\approx23.1\%$

Step5: Calculate relative - frequency for mechanical problems

Relative frequency of mechanical problems=$\frac{289}{1505}\times100\%\approx19.2\%$

Step6: Calculate relative - frequency for sabotage

Relative frequency of sabotage=$\frac{306}{1505}\times100\%\approx20.3\%$

The most serious threat to aviation safety is pilot error as it has the highest relative - frequency. To address this, more rigorous pilot training programs can be implemented, including regular refresher courses, simulator training for emergency situations, and better mental - health support to ensure pilots are in top condition during flights.

Answer:

Cause	Relative Frequency
Other human error	3.8%
Weather	23.1%
Mechanical problems	19.2%
Sabotage	20.3%

The most serious threat is pilot error. Measures like better training and mental - health support can be taken.