Question

the graph shows the relationship between daily caffeine consumption and resting heart rate for some adults. which phrases describe the relationship between heart rate and daily intake of caffeine? select two options. negative correlation increasing heart rate constant correlation positive correlation decreasing heart rate

Explanation:

To determine the relationship, we analyze the scatter plot. As total coffee intake (caffeine) increases, resting heart rate generally increases. A positive correlation exists when one variable increases with the other. Also, the trend shows heart rate is increasing with more caffeine. A negative correlation would be decreasing, constant is no change, so positive correlation and increasing heart rate fit.

Answer:

B. increasing heart rate, D. positive correlation