Principles of Epidemiology in Public Health Practice: An Introduction to Applied Epidemiology and Biostatistics (146 mins)
Read Lesson 3, pages 3-1 to 3-38 and complete Exercises 3.1, 3.2, 3.3, and 3.6. Once you are familiar with the material, complete questions 1-5, 8-13, and 17-22 in the "Self-Assessment Quiz" found on pages 3-56 to 3-61.
Click https://web.archive.org/web/20230519060949/https://www.cdc.gov/csels/dsepd/ss1978/SS1978.pdf link to open resource.