The sample space is the set of all possible entities that can exist in a particular situation.
a){boy, girl}
b) {length of time the patient lives after the treatment.}
c) {grades}
d) {shot, missed, shot, missed}
e) S: shot; M missed {SSSS, SSSM, SSMM, SMMM, MMMM, MMMS, MMSS, MSSS, SMSS, SSMS, SMMS, MSSM, MSMS, SSMM, SMSM..}
f) H head, T tail {the sequence is like in e except that it is H instead of S and T instead of M}