In the third Yes or No question:
Of the nations listed with a 1980 blood pressure below 125 mmHg, only 4 remained below 125 mmHg in 2008.
The answer explanation is as follows:
"Statement 3: Yes. This prompt is asking us to find all nations that had an average male blood pressure below 125 mmHg in both 1980 and 2008. We can begin by sorting either column and identifying the nations that fit the criteria. For example, sorting the table by column "1980" shows that Papua New Guinea, Cambodia, India, Bhutan, Thailand, Vietnam, Nepal, and Maldives all had blood pressures below 125 mmHg in 1980. Now, sorting on "2008" shows that of these nations, only Papua New Guinea, Cambodia, Turkey, and Thailand remained below 125 mmHg in 2008. Therefore four nations fell below 125 mmHg in both years; this statement can be shown to be true."
This is a mistake because Turkey is not even mentioned in the list of countries. The correct 4 countries that remain under 125 mmgh are: Papua New Guinea, Cambodia, India and Thailand.