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Unit 2 AP%u00ae Skills Workshop 237Practice AP%u00ae Skills1. According to the information presented in Figure 2(a), in what year is South Korea expected to overtake Japan in the share of population ages 65 and older?2. Based on the data represented in Figure 11.7 in Module 11, identify the percentage of thepopulation in most South American countries that uses an unimproved drinking water source.3. Using the data provided in Table 2(a), explainone reason why South Korea is aging rapidly and is projected to become the world%u2019s most aged country by the mid-twenty-first century.Here are two examples of questions you may be asked.a. Using the data in the table, identify the country with the most-aged population.In the table, Italy has both the highest median age and highest proportion of elderly people, so its population is the most aged (Germany is a close second). Recall that in Module 14 we discussed two measures of population aging: median age and percentage of people ages 65 and older.b. Describe one specific population policy the Nigerian government may want to implement.Nigeria may want to implement an antinatalist policy to curtail its rapid population growth because its fertility rate (5.1) is very high. With a slow population growth, the country can devote more resources to improving its citizens%u2019 standard of living. Given its large proportion of young people, the country may also want to focus on education to reap the demographic dividend, a concept discussed in Module 10.Basic CalculationsSome questions may require you to perform simple calculations before you can answer them. For example, you may be asked a question about Nigeria%u2019s population doubling time given its rate of natural increase of 2.4. If you recall the rule of 70 covered in Module 9, this is straightforward. You just need to divide the number 70 by the country%u2019s RNI (2.4) to get the answer, that is, 70 / 2.4 (Nigeria%u2019s RNI) = 29.2 years. In other words, Nigeria%u2019s population doubling time is just over 29 years.Understanding the Limitations of%u00a0Quantitative DataAnother application of the data analysis skill is to be able to identify the different types of quantitative data presented in maps and other formats and explain their limitations. A useful way to approach this type of question is to think about the reliability of the data or the scale of analysis. For example, in Figure 2(a) the data after 2021 are projections instead of actual observations. Some future policies or events (e.g., immigration) could potentially affect the pace of aging in those countries and therefore the conclusions we may draw. Figure 2(b) shows national data on aging, which do not allow us to say anything about how the levels of aging vary within the same country, especially large countries such as the United States. Subnational-level data at the state or county level would reveal considerable differences in aging between different parts of the United States.Preparing for the AP%u00ae Exam%u00a9 Bedford, Freeman & Worth Publishers. For review purposes only. Do not distribute.