Calculus 23 Probability Theory 23 Stochastic Processes 21 Design of Experiments 17 Operations research 17 Computer 16 Applied Numerical Analysis 14 Mathematical Statistics 10 Probability and Statistics 10 Sampling 9 Algebra 8 Economic development 5 Inference 5 Operations Research-- Information management-- Executive management 5 Probabilities-- Applied mathematics 5 Algebra-- Mathematics 4 Mathematics 4 Topology 4 INTRODUCTORY POLYMER CHEMISTRY 3 Integer programming 3 Pedagogical algebra-- Mathematics 3 Rural development 3 Rural sociology 3 Simplex method 3 Transportation models 3 correlation 3 Biochemistry-- Biology 2 Chemical bonding 2 Economic statistics 2 Fiscal policy 2