Question

among fatal plane crashes that occurred during the past 55 years, 506 were due to pilot error, 57 were due to other human error, 347 were due to weather, 280 were due to mechanical problems, and 300 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\t33.6%
other human error\t3.8%
weather\t23.1%
mechanical problems\t19.2%
sabotage\t20.3%
(round to one decimal place as needed.)
what is the most serious threat to aviation safety, and can anything be done about it?
a. mechanical problems are the most serious threat to aviation safety. new planes could be better engineered
b. sabotage is the most serious threat to aviation safety. airport security could be increased
c. weather is the most serious threat to aviation safety. weather monitoring systems could be improved
d. pilot error is the most serious threat to aviation safety. pilots could be better trained

Explanation:

Step1: Identify highest relative frequency

The relative frequencies are: Pilot error - 33.6%, Other human error - 3.8%, Weather - 23.1%, Mechanical problems - 19.2%, Sabotage - 20.3%. The highest relative frequency is 33.6% which corresponds to pilot error.

Step2: Determine solution for the threat

To address pilot - error threat, pilots could be better trained.

Answer:

D. Pilot error is the most serious threat to aviation safety. Pilots could be better trained