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").
A sample space is denoted using a notion to test the probability theory. 
( z1 denote :ARG1 ( z2 space :mod ( z3 sample ) ) :manner ( z4 use :ARG1 ( z5 notion ) :ARG2 ( z6 test :ARG1 ( z7 theory :mod ( z8 probability ) ) ) ) )