Direct:
Inverse:
1:
A:
Direct: Child Mortality, Total Fertility Rate
Inverse: Total Fertility Rate, Income Per Person
B:
Child Mortality usually decreases with development, Total Fertility also decreases, and Income Per Person increases.
2:
A:
Especially in the first video, most countries in Africa consistently lagged behind the more developed countries. In the second video, several Middle-Eastern countries had strangely high incomes per person, and China had a strange dip in Total Fertility Rate.
B:
The high incomes of certain Middle-Eastern countries can be explained by money from oil. The most likely reason for China's sudden decrease in Total Fertility is its one-child policy.
