Question

The randomly selected delivery times, in minutes, of two restaurants are as follows. Which restaurant has more consistent delivery times?
This table presents the randomly selected delivery times (in minutes) for two restaurants, allowing for comparison of their performance.
Restaurant 1: 40, 37, 40, 41, 38, 46, 41, 37, 40
Restaurant 2: 42, 38, 37, 39, 38, 40, 42, 41, 40
A. Restaurant 1 is more consistent, because the range of its delivery times is lower than that of Restaurant 2.
B. Restaurant 2 is more consistent, because the range of its delivery times is lower than that of Restaurant 1.
C. Restaurant 2 is more consistent, because the range of its delivery times is higher than that of Restaurant 1.
D. The delivery times of both restaurants are equally consistent.

Answer 1

Compute ranges:
- Restaurant 1: min = 37, max = 46 → range = 46 − 37 = 9
- Restaurant 2: min = 37, max = 42 → range = 42 − 37 = 5

Restaurant 2 has the lower range, so it is more consistent. Answer: B.