Negation of an event

Statement-1: 20 persons are sitting in a row. Two of these persons are selected at random. The probability that the two selected persons are not together is 0.9. Statement-2 :If overline(A) denotes the negation of an event A, then P(overline(A))=1-P(A) .

Statement-1: 20 persons are sitting in a row. Two of these persons are selected at random. The probability that the two selected persons are not together is 0.9. Statement-2 :If overline(A) denotes the negation of an event A, then P(overline(A))=1-P(A) .

Let A,B,C be three arbitrary events connected with a random experment. Write down the set-theoretic notations of the events whose verbal descriptions are given below: Negation of B (i.e.not B)

Negation of disjunction of p and q is equivalent to the negation of both p and q . Verify

Negation of the statement "This is false or That is true" is

Negation of the statement 'A is rich but silly' is

Negation of the statement 'A is rich but silly' is