If P(E) = 0.05, what is the probability of 'not E"?

The probability that a student will pass the final examination in both English and Hind is 0.5 and the probability of passing neither is 0.1. If the probability of passing the English examination is 0.75 what is the probability of passing the Hindi examination ?

A bag consists of 10 balls each marked with one e digits 0 to 9. If four balls are drawn successively with replacement from the bag, what is the probability that none is marked with the digit 0?

Let E and F be tow independent events. The probability that exactly one of them occurs is 11/25 and the probability if none of them occurring is 2/25 . If P(T) deontes the probability of occurrence of the event T , then

If E_(1),E_(2),E_(3) and E_(4) are the four elementary outcomes in a sample space and P(E_(1))=0.1,P(E_(2))=0.5,P(E_(3))=0.1 , then the probability of E_(4) is ……….

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

The probability of happening of 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 neither A nor B is ……….

Let E_(1), E_(2), E_(3), ....,E_(n) be independent events with respective probabilities p_(1), p_(2), p_(3), ....,p_(n) . The probability that none of them occurs is ……….

Of the three independent events E_1, E_2 and E_3, the probability that only E_1 occurs is alpha, only E_2 occurs is beta and only E_3 occurs is gamma. Let the probability p that none of events E_1, E_2 and E_3 occurs satisfy the equations (alpha-2beta), p=alphabeta and (beta-3gamma) p=2beta gamma. All the given probabilities are assumed to lie in the interval (0,1). Then, (probability of occurrence of E_1) / (probability of occurrence of E_3) is equal to