A) 2 points Read the "QoG 2010.dta" and "lifeexp.csv" data files into R. Merge these two datasets together (hint: use the merge command in R; note that your final merge dataset should have 121 observations. You should be able to merge the datasets using merge(dataframe1,dataframe2)). Plot the relationship between life expectancy and GDP per capita, and include the bivariate OLS regression line in the same plot. (Y = life expectancy, X = GDP)