From the U.S. Census Bureau, in the document International Data Base, we obtained data on the expectation of life (in years) at birth for people in various countries and areas. Those data are presented on the WeissStats CD.
a. Obtain the mean, median, and mode(s) of the data. Determine which of these measures of center is best, and explain your answer.
b. Determine the range and sample standard deviation of the data.
c. Find the five-number summary and interquartile range of the data.
d. Identify potential outliers, if any.
e. Obtain and interpret a boxplot.