answer question 4

Question 3. Is population growing more slowly perhaps because people aren't living as long? Use the life_expectancy table to draw a line graph with the years 1950 and later on the horizontal axis that shows how the life expectancy at birth has changed in Poland. Hint: Make sure you filter the table properly; otherwise, the graph may look funky! life_expectancy.where("geo", "bgd").select("time", "life_expectancy_years").where("time", are.above_or_equal_to(1950)).plot("time") Question 4. Assuming everything else stays the same, do the trends in life expectancy in the graph above directly explain why the population growth rate decreased since 1950 in Poland? Why or why not