It will help you choose the one which will best enable you to achieve your learning objectives in preparation for your professional or scientific career in public health. If yes, then the 611-612 series is best suited to your needs. If not, then 611-612 would be suitable. If yes, then the 651-654 series would be appropriate. If not, then the 621-624 would be best.
Students typically take one or the other.
The objectives of both courses are to introduce students to biostatistical methodology and to give students the skills to analyze data. In both sequences, you will learn many of the basic concepts including descriptive statistics, hypothesis testing, confidence intervals, p-values, sample size calculations, analysis of variance, linear regression, and logistic regression. Biostatistics 621-624 teaches the tools and techniques of data analysis. Biostatistics 651-654 covers similar topics but explains statistical techniques in more depth and requires the students to have more advance mathematical skills. It is required that students taking Biostatistics 651-654 have had a year of calculus and it is highly recommended that students have had a course in linear algebra.