The randomly selected delivery times, in minutes, of two restaurants are as follows. Which restaurant has more consistent delivery times?
Restaurant 1: 40, 37, 40, 41, 38, 46, 41, 37, 40
Restaurant 2: 42, 38, 37, 39, 38, 40, 42, 41, 40
The delivery times of both restaurants are equally consistent.
Restaurant 2 is more consistent, because the range of its delivery times is higher than that of Restaurant 1.
Restaurant 1 is more consistent, because the range of its delivery times is lower than that of Restaurant 2.
Restaurant 2 is more consistent, because the range of its delivery times is lower than that of Restaurant 1.
Restaurant 2 is more consistent, because the range of its delivery times is lower than that of Restaurant 1. Range is a measure of variability that indicates the difference between the highest and lowest values in a dataset. In this case, Restaurant 1 has a range of 9 (46-37) while Restaurant 2 has a range of 5 (42-37). A lower range suggests that the delivery times of Restaurant 2 are more consistent and less variable.
To determine which restaurant has more consistent delivery times, we need to compare the ranges of their delivery times. The range is calculated by subtracting the minimum value from the maximum value.
For Restaurant 1, the minimum delivery time is 37 minutes and the maximum delivery time is 46 minutes. Therefore, the range for Restaurant 1 is 46 - 37 = 9 minutes.
For Restaurant 2, the minimum delivery time is 37 minutes and the maximum delivery time is 42 minutes. So, the range for Restaurant 2 is 42 - 37 = 5 minutes.
In this case, the range of Restaurant 2 (5 minutes) is lower than the range of Restaurant 1 (9 minutes). Therefore, Restaurant 2 has more consistent delivery times.
Hence, the correct answer is: Restaurant 2 is more consistent, because the range of its delivery times is lower than that of Restaurant 1.