Information and IdeasHardChoosing data that support a claim about a rate
Information and Ideas practice question
A ferry company recorded sailings and cancellations in two winters.
Winter | Sailings scheduled | Cancelled
2024 | 500 | 50
2025 | 600 | 48
The company reports that reliability improved, noting that ____
Which choice most effectively uses data from the table to complete the statement?
- A. the cancellation rate fell from 10% to 8% even as more sailings were scheduled.Correct
- B. 48 sailings were cancelled in 2025.
- C. 600 sailings were scheduled in 2025.
- D. cancellations fell by 2.
Answer: A. the cancellation rate fell from 10% to 8% even as more sailings were scheduled.
50/500 = 10%; 48/600 = 8%.
Why the other answers are wrong
- B. 48 sailings were cancelled in 2025.
- A count without the base.
- C. 600 sailings were scheduled in 2025.
- Schedule size alone.
- D. cancellations fell by 2.
- A tiny raw drop that understates the improvement in rate.
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