A T.V survey gives the following data for T.V viewing:
`60%` see programme A, `50%` programme B,`50%` programma C,`30%` programmes A and B,`20%` programmes B and C,`30%` programmes A and C, `10%` do not view any programme.
What percent view all the three programmes A,B and C?

A T.V survey gives the following data for T.V viewing: 60% see programme A, 50% programme B, 50% programme C, 30% programmes A and B, 20% programmes B and C, 30% programmes A and C, 10% do not view any programme. What percent view exactly two programmes?

A T.V. survey gives the following data for T.V. viewing, 60% see programme x, 50% programme y, 50% programme z, 30% programmes x and y, 20% programmes y and z, 30% programmes x and z, 5% do not view any programme What percent view at least one of the programmes?

A T.V. survey gives the following data for T.V. viewing, 60% see programme x, 50% programme y, 50% programme z, 30% programmes x and y, 20% programmes y and z, 30% programmes x and z, 5% do not view any programme What percent view exactly two programmes?

A survey was conducted among a sample of 10,000 families on the use of mobile phones connections.It was found that 40% families use 'BSNL',20% families use 'Vodafone',10% families use 'Idea',5% families use 'BSNL' and 'Vodafone',3% families use 'Vodafone and Idea',4% families use 'BSNL and Idea' and 2% families use all the three connections.(i)If A,B and C denote the sets of families using 'BSNL',Vodafone and Idea mobile phones connections respectively.Match the following columns X and Y in the table.

A manufacturer has three machine operators A,B and C. The first operator A produces 1% defective items,whereas the other two operator B and C produce 5% and 7% defective items respectively. A is on the job for 50% of the time,B is on the job 30 % of the time and C is on the job for 20% of the time. A defective item is produced,what is the probability that it was produced by A?

The accuracy in measurement depends on the limit or the resolution of the measuring instrument.A physical quantity P is related to four observables a,b,c and d as P=(a^3)(b^2)/(cd)^(1/2) . The percentage errors in measurements of a, b, c and d are 1% , 3% , 2% and 3% respectively. What is the percetage errors in the measurement of P ?