1 .Let is a probability space and A,B,C be three events. Find expression for the following events:

 

(i)  only A occurs

(ii)  both A and B but not C occur

(iii)  at least one event occurs

(iv)  at least two events occur

(v)  at most one event occurs

(vi)  at most two events occur

(vii)  exactly one of events A,B,C occurs

(viii)  exactly two of events A,B,C occurs

(ix)  all three events occur

(x)  none of the three events occurs