Let the sample space be the outcome of rolling a single die: (1,2,3,4,5,6). n(S)=6 Let the event be rolling an even number. E= (2,4,6) n(E)=3 The size of complement of this event (the number of outcomes that is not even). Denoted n(E^c)= Note: Your answer is a value, not a set. For example: if E^c = [a, b, c, d, e) , then your answer n(E^c)= 5