QUESTION TEXT: Commercial passenger airplanes can be equipped with…
QUESTION TYPE: Strengthen
CONCLUSION: Commercial airplane passengers are safer with the system, even though it frequently tells pilots to dodge non-existent airplanes.
REASONING: The system warns pilots when they will crash into airplanes.
The system will also mistakenly warn pilots that there is an oncoming plane, even when there is no danger.
ANALYSIS: Would you like your pilot to frequently swerve left and right to avoid imaginary airplanes? It doesn’t sound safe.
The right answer strengthens the argument by telling us that false alarms don’t create any risk.
___________
- CORRECT. This helps show that the false warnings don’t pose a risk.
- This is an interesting statistic, but it’s irrelevant to deciding whether the system will make airborne passengers safer.
- This shows that the system is not very important: collisions are rare.
- This shows the system isn’t very reliable.
- This tells us how the system works, but it doesn’t let us know if it is useful.
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