The Florida State Center for Health Statistics reported in Women

The Florida State Center for Health Statistics reported in Women and Cardiovascular Disease Hospitalizations that, for cardiovascular hospitalizations, the mean age of women is 71.9 years. At one hospital, a random sample of 20 female cardiovascular patients had the following ages, in years.
The Florida State Center for Health Statistics reported in Women

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).