Source for Figure 2.21: World Development Indicators

Source for Figure 2.21: Environmental Protection Index 2018

Data Exclusions in Figure 2.21

Classification of Countries in Figure 2.21 Relative to the Line of Best Fit

A scatter plot graph displays data for various countries, with national income per person on the horizontal axis and CO2 emissions per person on the vertical axis. A 'line of best fit' runs through the data points, showing a clear positive trend: as income increases, emissions also tend to increase. However, there is significant variation, with many countries falling either considerably above or below this line. Based on this information, which of the following statements represents the most accurate conclusion?

Analyzing Economic Output and Carbon Emissions

Interpreting Data Deviations

A scatter plot graph displays data for various countries, with national income per person on the horizontal axis (increasing from left to right) and CO2 emissions per person on the vertical axis (increasing from bottom to top). A 'line of best fit' runs through the data points, showing a positive trend where higher income generally corresponds to higher emissions. Match each country profile with its most likely position on the graph relative to this line of best fit.

A scatter plot displays a positive correlation between a country's income per person and its CO2 emissions per person, with a line of best fit indicating the average trend. Based on this information, it is accurate to conclude that any given country with a higher income per person than another will necessarily have higher CO2 emissions per person.

Evaluating Development Models Based on Emissions Data

Explaining Anomalies in Economic and Environmental Data

A scatter plot shows that, on average, countries with higher national income per person also have higher CO2 emissions per person. A line of best fit illustrates this positive trend. However, many individual countries lie significantly above or below this line. What is the most significant limitation when using this general trend to predict a specific, individual country's emissions based solely on its income?

Comparing Carbon Efficiency of Economies

A scatter plot displays data for various countries, with national income per person on the horizontal axis and CO2 emissions per person on the vertical axis. A 'line of best fit' illustrates the average relationship between these two variables. A country positioned significantly below this line can be interpreted as having a relatively ______ carbon-efficient economy compared to other countries at a similar income level.

Official Caption for Figure 2.21: CO2 Emissions and National Wealth