Question

An illustration shows a scatterplot titled Number of Laps the Swim Team Completes Per Week. The x-axis shows weeks ranging from 1 through 10 in increments of one. The y-axis shows number of laps and ranges from 100 to 1,000 in 100 unit increments.
Eight points are plotted on the graph. A kink is shown on both the x- and y-axes close to the origin to indicate a break in the data. The points are plotted at approximate coordinates (1, 50), (2, 150), (3, 200), (4, 300), (5, 500), (6, 600), (7, 700), and (8, 800).
Interpret the scatterplot to determine what type of association the scatterplot shows.
A. The graph shows a positive linear association.
B. The graph shows a negative linear association.
C. The graph shows no association.
D. The graph is non–linear.

Answer 1

A. The points rise as the week number increases and lie roughly along a straight line, so the scatterplot shows a positive linear association.