80 Probability and Statistics
81.1 Probability. Hazards
81.2 Combinatorial analysis
See also: 46 Graph theory
82 Stochastic processes. Markov chains. Theory of queues. Stochastic geometry. Limit theorems
83 Statistics. Design of experiments. Errors. Observations
84 Statistical decision theory
85 Information theory (see also: 256). Coding. Systems and control theory
86 Operations research. Mathematical optimization techniques. Optimal control
87 Game theory
88 Actuarial mathematics