Ron and Ara recorded the distances they covered while biking for 4 hours. The miles they biked on randomly selected days are as follows. Who has a more consistent biking record?
Ara: 39, 35, 49, 32, 45, 39, 33, 38, 40
Ron: 37, 46, 50, 49, 36, 38, 35, 39, 41
Ara’s record is more consistent, because the range of the miles he biked is lower than Ron’s.
Ron and Ara have equally consistent biking records.
Ron’s record is more consistent, because the range of the miles he biked is higher than Ara’s.
Ron’s record is more consistent, because the range of the miles he biked is lower than Ara’s.
Ara’s record is more consistent, because the range of the miles she biked is lower than Ron’s.
When I checked the answer, it said Ron's was more consistent, because the range of miles he biked was lower than Ara's. Is there confusion?
I apologize for the confusion, but the correct answer is indeed that Ron's record is more consistent because the range of miles he biked is lower than Ara's. I must have typed the wrong answer earlier. Thank you for bringing it to my attention.
To determine who has a more consistent biking record, we can compare the ranges of the miles they biked. The range is calculated by subtracting the smallest value from the largest value in a set.
Let's calculate the range for both Ara and Ron:
For Ara:
- The smallest distance biked is 32 miles.
- The largest distance biked is 49 miles.
- So, the range for Ara is 49 - 32 = 17 miles.
For Ron:
- The smallest distance biked is 35 miles.
- The largest distance biked is 50 miles.
- So, the range for Ron is 50 - 35 = 15 miles.
Comparing the ranges, we see that Ara's range (17 miles) is higher than Ron's range (15 miles). This means that Ara's biking record shows less variability in the distances covered compared to Ron's. Hence, Ara has a more consistent biking record.
Therefore, the correct answer is: Ara’s record is more consistent, because the range of the miles he biked is lower than Ron’s.