among total plane - crashes that occurred during the past 65 years, 424 were due to pilot error, 66 were due to other human error, 51 were due to weather, 270 were due to mechanical problems and 463 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 %
other human error %
weather %
mechanical problems %
sabotage %
(round to one decimal place as needed.)
what is the most serious threat to aviation safety, and can anything be done about it?
a. pilot error is the most serious threat to aviation safety. pilots could be better trained.
b. sabotage is the most serious threat to aviation safety. airport security could be increased.
c. mechanical problems are the most serious threat to aviation safety. new planes could be better engineered.
d. weather is the most serious threat to aviation safety. weather monitoring systems could be improved.

Question

among total plane - crashes that occurred during the past 65 years, 424 were due to pilot error, 66 were due to other human error, 51 were due to weather, 270 were due to mechanical problems and 463 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	%
other human error	%
weather	%
mechanical problems	%
sabotage	%
(round to one decimal place as needed.)
what is the most serious threat to aviation safety, and can anything be done about it?
a. pilot error is the most serious threat to aviation safety. pilots could be better trained.
b. sabotage is the most serious threat to aviation safety. airport security could be increased.
c. mechanical problems are the most serious threat to aviation safety. new planes could be better engineered.
d. weather is the most serious threat to aviation safety. weather monitoring systems could be improved.

Accepted Answer

# Explanation:
## Step1: Calculate total number of crashes
$424 + 66+51 + 270+468=1279$
## Step2: Calculate relative frequency for pilot error
Relative frequency = $\frac{424}{1279}	imes100\%\approx 33.2\%$
## Step3: Calculate relative frequency for other human - error
Relative frequency = $\frac{66}{1279}	imes100\%\approx 5.2\%$
## Step4: Calculate relative frequency for weather
Relative frequency = $\frac{51}{1279}	imes100\%\approx 4.0\%$
## Step5: Calculate relative frequency for mechanical problems
Relative frequency = $\frac{270}{1279}	imes100\%\approx 21.1\%$
## Step6: Calculate relative frequency for sabotage
Relative frequency = $\frac{468}{1279}	imes100\%\approx 36.6\%$
## Step7: Determine the most serious threat
Since $36.6\%$ (sabotage) is the highest relative - frequency, sabotage is the most serious threat.

# Answer:
| Cause | Relative Frequency |
|--|--|
| Pilot error | $33.2\%$ |
| Other human error | $5.2\%$ |
| Weather | $4.0\%$ |
| Mechanical problems | $21.1\%$ |
| Sabotage | $36.6\%$ |
A. Sabotage is the most serious threat to aviation safety. Airport security could be increased. So the answer for the multiple - choice part is B.

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QUESTION IMAGE

Question

Explanation:

Step1: Calculate total number of crashes

Step2: Calculate relative frequency for pilot error

Step3: Calculate relative frequency for other human - error

Step4: Calculate relative frequency for weather

Step5: Calculate relative frequency for mechanical problems

Step6: Calculate relative frequency for sabotage

Step7: Determine the most serious threat

Answer:

Cause	Relative Frequency
Other human error	$5.2\%$
Weather	$4.0\%$
Mechanical problems	$21.1\%$
Sabotage	$36.6\%$