In probability theory, the sample space of an experiment or random trial is the set of all possible outcomes or results of that experiment. A sample space is usually denoted using set notation, and the possible ordered outcomes are listed as elements in the set. It is common to refer to a sample space by the labels "S", Ω, or "U" (for "universal set").
Probability theory is more difficult to understand that most of theories.
( z1 have-degree :ARG1 ( z2 understand :ARG1 ( z3 theory :mod ( z4 probability ) ) ) :ARG2 ( z5 difficult ) :ARG3 ( z6 more ) :ARG4 ( z7 theory :ARG1-of ( z8 include :ARG2 ( z9 theory ) :ARG3 ( z10 most ) ) ) )