By having this information about a two variable analyze project, make a goof thesis question please!

Topic: World's Fertility Rate vs GDP per Capita in 2016 Question: What is the relationship between the Total Fertility Rate and GDP per Capita in year 2016? Hypothesis: There is a moderate, negative linear correlation between Total Fertility Rate and GDP per Capita in year 2016. For the highest values of total fertility rates, the values for GDP per capita are generally the lowest. For the lowest values of total fertility rates, the values for GDP per capita are generally the highest. X-variable: Total Fertility Rate (continuous variable). Total fertility rate is defined as the average number of children that would be born to a woman in case she were to live until the end of her childbearing years and give birth to children correspondingly with age-specific fertility rates of the specified year. Y-variable: GDP per Capita (continuous variable). GDP per capita is defined as gross domestic product divided by midyear population. In other words, it serves as a measure of a specific country's economic output per number of people in that country. It is primarily used for measuring a country's standard of living