easy · MCAT bio-biochem
A study finds a correlation of r = -0.85 between the amount of exercise people get and their resting heart rate.
Which of the following is a valid interpretation of this finding?
- About 85% of the variation in heart rate is explained by exercise.
- Higher amounts of exercise are associated with lower resting heart rates.
- Exercise causes the resting heart rate to decrease by 85% in most people.
- There is a weak linear relationship between exercise and heart rate.
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