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:

Step1: Observe the graph trend

As the total coffee intake (daily caffeine consumption) increases from 1 - 10 cups on the x - axis, the resting heart rate on the y - axis generally increases.

Step2: Recall correlation types

A positive correlation means that as one variable increases, the other variable also increases. An increasing heart rate is also consistent with the upward - trend of the data points on the graph.

Answer:

increasing heart rate, positive correlation