Set Theory Quiz: Answer the following questions based on the given

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Answer the following questions based on the given information: In a marketing survey for products A, B, and C, 1,000 people were asked which of the products, if any, they use. The three circular regions in...

Solution

N1 represents number of people who use only one product, N2 represents number of people who use only two products and N3 represents the number of people who use all the three products.Let NA, NB and NC represents the...