2.2 bar graphs

A 2013 survey examined the attitudes of students about the use of mobile devices in

learning. The results of the survey are summarized in the following table and the corresponding bar graph. The percentages given are for the number of high school students who reported using the technology at least a few times a week in doing schoolwork.

Using the table, what is the difference in percentages between laptop use and smartphone use for schoolwork?

• 26%

• 98%

• 42%

• 16%

A 2013 survey examined the attitudes of students about the use of mobile devices in

learning. The results of the survey are summarized in the following table and the corresponding bar graph. The percentages given are for the number of high school students who reported using the technology at least a few times a week in doing schoolwork.

Using the table, what is the sum of percentages of laptop use and full-size tablet use for schoolwork?

• 43%

• 98%

• 85%

• 56%

From the 2013 survey, if the percentage of high school students who reported not using any technology for schoolwork at least a few times a week was 10%, what is the percentage of students using some form of technology for schoolwork?

• 80%

• 85%

• 90%

• 95%

The following chart shows the number of Superfund hazardous waste sites designated

in various regions of the United States by October 2013.

How many regions are represented in the chart?

• 50

• 10

• 5

• 300

The following chart shows the number of Superfund hazardous waste sites designated

in various regions of the United States by October 2013.

Which region has the greatest number of Superfund sites?

• Midwest

• NY & NJ

• Mountain

• New England

The following chart shows the number of Superfund hazardous waste sites designated

in various regions of the United States by October 2013.

Which region has the least number of Superfund sites?

• Prairie

• NY & NJ

• Mountain

• New England

The following chart shows the number of Superfund hazardous waste sites designated

in various regions of the United States by October 2013.

Which 3 regions have the least number of Superfund sites?

• Prairie

• South Central

• Mountain

• Pacific Northwest & Alaska

The following chart shows the number of Superfund hazardous waste sites designated

in various regions of the United States by October 2013.

From the chart, estimate the total number of Superfund sites.

• 1000

• 500

• 700

• 1300

The following chart shows the number of Superfund hazardous waste sites designated

in various regions of the United States by October 2013.

Estimate the number of Superfund sites in the Midwest.

• 200

• 240

• 52

• 130

The following chart shows the number of Superfund hazardous waste sites designated

in various regions of the United States by October 2013.

Estimate the number of Superfund sites in the Montain region.

• 60

• 240

• 55

• 130