Home
Class 11
MATHS
A survey was conducted among a sample of...

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.

Promotional Banner

Similar Questions

Explore conceptually related problems

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.(ii)Determine the number of families that use 'BSNL' mobile phone connection only.

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.(iii)Find the number of families that use none of the mobile phone connections.

marginal placentation is generally found in the family