Alcohol Use Disorders (AUDs). The World Health Organization, in the Global Status Report on Alcohol and Health 2014, presented data on the prevalence of AUDs in the world. The following table contains data for the European region. 5.3 5.7 10.2 17.5 6.4 11.3 7.7 4.1 19.3 3.8 1.2 8.6 9.9 8.7 6.4 5.3 2.6 18.2 5.5 10.6 12.6 1.4 8.7 5.4 4.9 12.1 5.0 0.8

a. Round each observation to the nearest year and then construct a stem-and-leaf diagram of the rounded data.

b. Truncate each observation by dropping the decimal part, and then construct a stem-and-leaf diagram of the truncated data.

c. Compare the stem-and-leaf diagrams that you obtained in parts (a)

and (b).