Question

There are 3 TV programs A,B and C. Which can be received in a city of 2000 families. The following information are available on the basis of a survey.
(1) 1200 families listened to Program A
(2) 1100 families listened to Program B
(3) 800 families listened to Program C
(4) 765 families listened to Program A and B
(5) 450 families listened to Program A and C
(6) 400 families listened to Program B and C
(7) 100 families listened to Program A, B and C.
Find the probability that a family selected at random listens at least one or more TV programs​

Answer 1

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