More visualization. Figure 4.3 contains three stemplots. Stemplot A represents ages (years) of participants in a childhood health survey (n

= 322). Stemplot B represents body weights of students in a class (n

= 53). Stemplot C represents coliform levels in water samples (n =

25). Look at each of these plots and visually estimate each mean. It may help to tip your head to the right to help imagine where the stemplots would balance. The calculated means are listed in the answer key in the back of the book. After you have completed your visual estimates, compare them to the actual means.