19 The Human Development Index (HDI) has three components life expectancy at birth. cducational attainment, and income. It ranges from 0 to 1, with higher values representing greater development. In 1992, the HDI ratings for eight Central American countries were .884 for Belize, .884 for Costa Rica, .579 for El Salvador. 591 for Guatemala, .578 for Honduras. $42 for Mexico, .611 for Nicaragua. and .856 for Panaina

a) Construct a stem and leaf plot. Drop the final digit, and split the values into two parts;

that is. have two lines for responses with first digit 8. putting entries with second digit 0 10 4 on one line and 5 to 9 on the second. have two lines for 7. two lines for 6. and two lincs for 5. What is the shape of the distribution?

b) Calculate and interpret the mean, median, and range.