You are planning to study for your statistics examination with a group of classmates, one of whom you particularly want to impress. This individual has volunteered to use Microsoft Excel to get the needed summary information, tables and charts for a data set containing several numerical and categorical variables assigned by your lecturer for study purposes. This person comes over to you with the printout and exclaims, ‘I’ve got it all – the means, the medians, the standard deviations, the box-and-whisker plots, the pie charts – for all our variables. The problem is, some of the output looks weird – like the box-andwhisker plots for gender and for major, and the pie charts for grade point average and for height. Also, I can’t understand