The pie charts illustrate the data about the attending of variety of courses by learners over two decades. Overall, face-to-face courses led the chart during all periods. Also, mixed-media courses were more popular while the reverse was true for other categories.
Turning to the first diagram, in 1984, the majority of students chose face-to-face courses with 67% while mixed-media and correspondence courses lower amounts at 13% and 20% ,respectively.
Regarding the breakdowns of the second given chart in 1994, the proportion for face-to-face courses declined to 54%, whereas mixed-media courses increased by 2%. Notably, there was also added online courses and chosen by 11% students. The percentage for correspondence courses stabilized at 20%.
After 10 years, three trends, including online, face-to-face, and correspondence courses, decreased gradually to 10%, 40%, and 15% in turn. It is evident that the trend for mixed-media courses rose sharply to 35% in the final given year, but face-to-face courses remained a dominant category compared to others.
