Sample space and events The set of all possible outcomes is the sample space,usually denoted by 0. Example.=HH,HT,TH,TT. Event:a subset of sample space. A n is a set of possible outcomes Example.A =HH,T'T,the event that the two coins give the same side.Sample space and events  The set of all possible outcomes is the sample space, usually denoted by Ω.  Example. Ω = 𝐻𝐻, 𝐻𝑇, 𝑇𝐻, 𝑇𝑇 .  Event: a subset of sample space.  𝐴 ⊆ Ω is a set of possible outcomes  Example. 𝐴 = 𝐻𝐻, 𝑇𝑇 , the event that the two coins give the same side