Among fatal plane crashes that occurred Previous Question 519 were due to pilot error, 76 were due to other human error, 383 were due to weather, 118 were due to mechanical problems, and 291 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 Relative Cause Frequency Pilot error Other human error Weather of Mechanical problems % Sabotage %