Figure 3
The four pie charts are arranged in a two-by-two grid. Each chart is labeled with a title at the bottom and represents a different category. The individual slices of each pie chart are color-coded, with the corresponding percentage and a legend at the bottom of the chart. The chart in the top-left, labeled “(a) Age Distribution,” shows the breakdown by age group. The largest slice, at 46.67 percent, represents the “40 to 49” age group. The other age groups are: “30 under” at 9.74 percent, “30 to 39” at 24.62 percent, “50 to 59” at 16.41 percent, and “60 over” at 2.56 percent. The chart in the top-right, labeled “(b) Education Level,” shows that the largest group is “Undergrad” at 51.79 percent, followed by “Master and P h D” at 46.15 percent. The smallest group is “High School” at 2.05 percent. The chart in the bottom-left, labeled “(c) Professional Engineering Titles,” indicates that the majority hold the title of “Assistant Engineer” at 57.95 percent. The remaining titles are “Engineer” at 28.72 percent and “Senior Engineer” at 13.33 percent. Finally, the chart in the bottom-right, labeled “(d) Years of Experience,” shows that the largest portion of the population has “20 to 29 years” of experience at 44.1 percent. The other categories are “10 under” at 27.69 percent, “10 to 19 years” at 17.44 percent, and “30 over” at 10.77 percent.Demographic characteristics of survey respondents. Source: Authors’ own creation