Information and IdeasHardChoosing data that support a claim about a rate
Information and Ideas practice question
A clinic recorded missed appointments before and after it began sending text reminders.
Quarter | Appointments | Missed
Before | 2,000 | 300
After | 2,400 | 240
The clinic manager argues that the reminders cut the rate of missed appointments, noting that ____
Which choice most effectively uses data from the table to complete the statement?
- A. the missed rate fell from 15% to 10% even though the number of appointments rose.Correct
- B. 2,400 appointments were booked after.
- C. 240 appointments were missed after.
- D. appointments rose by 400.
Answer: A. the missed rate fell from 15% to 10% even though the number of appointments rose.
300/2,000 = 15%; 240/2,400 = 10%.
Why the other answers are wrong
- B. 2,400 appointments were booked after.
- A total, not a rate.
- C. 240 appointments were missed after.
- A count without the base.
- D. appointments rose by 400.
- Bookings, not missed appointments.
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