2. Use a stem-and-leaf plot to display the data. The data represent the numbers of hours 24 nurses work per week. 40 40 35 48 38 40 36 50 32 36 40 35 30 24 40 36 40 36 40 39 33 40 32 38 3. The numbers of earned degrees conferred (in thousands) in 1990 are shown in the table. Find the relative frequency and central angle of each category, and then construct a pie chart. Type of Number degree (in thousands) Associate's 455 Bachelor's 1051 Master's 330 Doctoral 104 0 270' 90 180' 2