Carbon dioxide emissions. The data file CO2 gives carbon dioxide (CO2) emissions per person for 134 countries. The units are metric tons per person. The distribution is strongly skewed to the right.
(a) Give the five-number summary. Explain why this summary suggests that the distribution is right-skewed.
(b) Which countries are outliers according to the 1.5 × IQR rule? Make a stemplot or histogram of the data. Do you agree with the rule's suggestions about which countries are and are not outliers?