 
       
      
    5. Three coins are tossed. Describe
(iii) Two events, which are not mutually exclusive.
 
                
                  Sample space when three coins are tossed = [Sample space when a coin is tossed thrice!]
S = {HHH, HHT, HTH, HTT, THH, TTH, THT, TTT}
Let ,
A = Getting at least one head = {HHH, HHT, HTH, THH, TTH}
B = Getting at most one head = {TTH, TTT}
Clearly, A    B  = {TTH} 
 
Hence, A and B are two events which are not mutually exclusive.
 
                 
                