On this Picostat.com statistics page, you will find information about the UN data set which pertains to GDP and Infant Mortality. The UN data set is found in the car R package. Try to load the UN data set in R by issuing the following command at the console data("UN"). This may load the data into a variable called UN. If R says the UN data set is not found, you can try installing the package by issuing this command install.packages("car") and then attempt to reload the data with library("car") followed by data("UN"). Perhaps strangley, if R gives you no output after entering a command, it means the command succeeded. If it succeeded you can see the data by typing UN at the command-line which should display the entire dataset.
If you need to download R, you can go to the R project website. You can download a CSV (comma separated values) version of the UN R data set. The size of this file is about 3,557 bytes.
GDP and Infant Mortality
UN data frame has 207 rows and 2 columns.
The data are for 1998 and are from the United Nations; the observations
are nations of the world.
There are some missing data.
This data frame contains the following columns:
Infant morality rate, infant deaths per 1000 live births.
GDP per capita, in U.S.~dollars.
United Nations (1998)
Originally from http://www.un.org/Depts/unsd/social/main.htm but no longer there.
Fox, J. (2008)
Applied Regression Analysis and Generalized Linear Models,
Second Edition. Sage.
Fox, J. and Weisberg, S. (2011)
An R Companion to Applied Regression, Second Edition, Sage.
Dataset imported from https://www.r-project.org.