The probability of happening an event A is 0.5 and that of B is 0.3. If A and B are mutually exclusive events, then the probability of happening neither A nor B is
Options:
A .  
0.6
B .  
0.2
C .  
0.21
D .  
None of these
Answer: Option B : B P(¯¯¯¯A∩¯¯¯¯B)=P(¯¯¯¯A∪¯¯¯¯B)−1−P(A∪B) Since A and B are mutually exclusive, P(A∪B)=P(A)+P(B) Hence required probability =1–(0.5+0.3)=0.2
Submit Your Solution hear: