Probability Tes...

The probability that at least one of the events A and B occurs is 0.6.If A and B occur simultaneously with probability 0.2,then $$P(\overline{A})+P(\overline{B})$$ is 
(Here $$\overline{A}$$ and $$\overline{B}$$ are complements of A and B, respectively.)

If A and B are two events such that P(A)$$=\dfrac{1}{2}$$, P(B)$$\dfrac{1}{3}$$, P(A/B) $$= \dfrac{1}{4}$$, then P(A' $$\cap$$ B') equals

Let $$S$$ and $$T$$ are two events defined on a sample space with probabilities $$P(S)=0.5,P(T)=0.69,P(S/T)=0.5$$ Event $$S$$ and $$T$$ are 

E and F are two independent events,The probability that both E and F happen is 1/12 and  the probability that neither E nor F happens is 1/2.Then,

A and B are events such that $$P(A) = 0.4, P(B) = 0.3$$ and $$P(A \cup B) = 0.5$$, Then $$P(B' \cap A')$$ equals

If A and B are two independent events with P(A) $$= \frac{3}{5}$$ and P(B) $$= \frac{4}{9}$$, then P(A' $$\cap$$ B') equals

In a random experiment,it the occurrence of one event prevents the occurrence  of other event,is 

If $$P(A) = 0.4, P(B) = 0.8$$ and $$P(B | A) = 0.6$$, then $$P(A \cup B)$$ is equal to

If the events A and B are independent, then $$P(A \cap B)$$ is equal to 

If  $$ E_{1} \cap  E_{2} = \phi $$, then  $$ E_{1} and E_{2}$$ will be