Good physical fitness has been correlated with many medical benefits, particularly in relation to blood pressure.A regression equation predicting an individual's blood pressure based on physical fitness level results in a negatively sloped line of best fit.What does this statement mean?
A) People who are physically fit are predicted to have low blood pressure, while people who have low fitness levels are predicted to have high blood pressure.
B) People who have low fitness levels have low blood pressure, while people who are highly active probably have high blood pressure.
C) There is no correlation between blood pressure and physical fitness.
D) Low fitness levels cause high blood pressure; high fitness levels cause low blood pressure.

Question

Quizplus · Accepted Answer

The negatively sloped line of best fit indicates that there is a negative correlation between physical fitness level and blood pressure. This means that as physical fitness level increases, blood pressure tends to decrease, and as physical fitness level decreases, blood pressure tends to increase. Therefore, people who are physically fit are predicted to have low blood pressure, while people who have low fitness levels are predicted to have high blood pressure.

Good Physical Fitness Has Been Correlated with Many Medical Benefits