A group of young adults reported their average number of hours of exercise
per week and measured their resting heart rates. An approximate least-
squares regression line was used to predict the resting heart rate from a
given number of hours of exercise per week.
Resting heart rate (beats per minute)
84-
80-
76-
72-
68-
64-
•
2
4
6
8 10 12 14 16 18
Hours of exercise per week
Interpret the residual for the young adult indicated in the scatterplot above.
Choose 1 answer:
This young adult exercises for 6 more hours than predicted based
on the resting heart rate.
This young adult exercises for 6 fewer hours than predicted based
on the resting heart rate.
This young adult's resting heart rate was 6 more beats per minute
than predicted based on the number of hours of exercise.
This young adult's resting heart rate was 6 fewer beats per minute