Determine whether the data in each of the graphs provided would result in a negative or positive correlation coefficient.

a.

Description

The data are as follows. Variable A is represented along the horizontal axis and its values range from 0 to 1000 in increments of 200. Variable B is represented along the vertical axis and its values range from 0.00 to 1.50 in increments of 0.25. The plotted points are listed as follows. (0.1, 1.01), (180, 0.76), (190, 0.56), (210, 0.23), (250, 0.25), (210, 0.26), (210, 0.74), (210, 1.30), (210, 1.50), (390, 0.24), (400, 0.25), (390, 0.50), (410, 0.49), (450, 0.25), (620, 0.23), (620, 0.25), (650, 0.60), (600, 1.00), (990, 0.48), and (990, 1.23).

All data are approximate.

b.

Description

The data are as follows. Variable A is represented along the horizontal axis and its values range from 0 to 80, in increments of 20. Variable B is represented along the vertical axis and its values range from 0 to 1000 in increments of 200. The plotted points are listed as follows. (17, 0), (20, 180), (20, 190), (25, 150), (30, 200), (25, 390), (25, 400), (30, 700), (35, 210), (35, 220), (35, 600), (40, 250), (40, 650), (45, 250), (55, 410), (60, 500), (65, 580), (65, 980), (62, 390), (75, 230), and (75, 980).

c.

Description

The data are as follows. Variable A is represented along the horizontal axis and its values range from 0 to 80 in increments of 20. Variable B is represented along the vertical axis and its values range from 0.00 to 1.50 in increments of 0.25. The plotted points are listed as follows. (25, 0.23), (25, 0.25), (20, 0.60), (15, 1.10), (20, 1.25), (25, 0.60), (30, 0.30), (30, 0.60), (35, 0.65), (35, 1.00), (35, 1.30), (40, 0.23), (40, 0.25), (40, 0.24), (45, 0.23), (60, 0.27), (55, 0.50), (65, 0.50), (65, 1.23), (75, 0.23), and (80, 1.50).

Transcribed Image Text:

1.50 1.25 1.00 Variable B 0.75 0.50 0.25 0.00 200 400 600 800 1000 Variable A