Figure 7. Diagram of test scores (a); graph of cumulative frequencies (b)

From

Creating CDIO-Based Chemistry Research Activities for Students: A Case Study in Organic Compound Structure

Cao Cu Giac, Pham Ngoc Tuan, Le Thi Thu Hiep

World Journal of Chemical Education. 2024, 12(1), 39-44 doi:10.12691/wjce-12-1-6