Question

multiple choice 2 points
the table below shows the average hourly wages for non - supervisory workers for the years 1990 - 2002. which scatter plot most accurately shows this information?
average hourly wages for non - supervisory workers
average hourly wages for non - supervisory workers
average hourly wages for non - supervisory workers

Explanation:

Step1: Analyze the left scatter - plot

The left scatter - plot has the x - axis labeled "Year" (1980 - 2004) and the y - axis labeled "Average Hourly Wage" (\$7.00 - \$12.00). But the data points do not match the table values well. For example, for 1990, the table has \$8.50, but the left - plot's y - axis starts at \$7.00 and the first non - zero mark is \$8.00, and the data point for 1990 in the left - plot seems to be around \$9.00 (incorrect).

Step2: Analyze the right scatter - plot

The right scatter - plot has the x - axis labeled "Year" (1980 - 2004) and the y - axis labeled "Average Hourly Wage" (\$7.00 - \$12.00). For 1990 (\$8.50), 1992 (\$9.00), 1994 (\$9.25), 1996 (\$9.25), 1998 (\$10.00), 2000 (\$9.75), 2002 (\$10.25), we check the vertical position of the data points. The y - axis has a mark at \$7.00, \$8.00, \$9.00, \$10.00, \$11.00, \$12.00.

• For 1990 (\$8.50), it is halfway between \$8.00 and \$9.00.
• For 1992 (\$9.00), it is at the \$9.00 mark.
• For 1994 (\$9.25), it is a quarter of the way between \$9.00 and \$10.00.
• For 1996 (\$9.25), same as 1994.
• For 1998 (\$10.00), at the \$10.00 mark.
• For 2000 (\$9.75), three - quarters of the way between \$9.00 and \$10.00.
• For 2002 (\$10.25), a quarter of the way between \$10.00 and \$11.00.

Answer:

The right - hand scatter - plot.