The probability of two events A and B are0.25 and 0.40 respectively. The probability that both A and B occur is 0.20. The probability that neither A nor B occur is _________  Choose the most appropriate option:
A) 0.45  B) 0.4  C) 0.55  D) 0.05  E) 0.6
we are apply that formula..............   P(AorB)=P(A)+P(B)-P(A AND B)   =.25+.40-.20= 
<gadget id="calculator">.25+.40-.20</gadget>
<output>0.45</output>
.45   but the probability of neither A nor B=1-.45= 
<gadget id="calculator">1-.45</gadget>
<output>0.55</output>
0.55   ANSWER:0.55
<result>C</result>
The probability of two events A and B are0.25 and 0.40 respectively. The probability that both A and B occur is 0.20. The probability that neither A nor B occur is _________