New code should use data(pisa2018)
instead.
Dataset containing average scores on math, reading, and science together with standard errors for all OECD countries. These are from the 2018 Program for International Student Assessment (PISA) study by the Organization for Economic Cooperation and Development (OECD). The average scores are over all 15-year-old students in the study.
pisa
A data frame with 37 rows and 7 variables:
country, from which data was collected
average score in math
standard error for the average score in math
average score in reading
standard error for the average score in reading
average score in science
standard error for the average score in science