Suppose that a survey of 100 advertisers in U.S. News, These Times, and World found the following.

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Suppose that a survey of 100 advertisers in U.S. News, These Times, and World found the following.

14 advertised in all three

30 advertised in These Times and U.S. News

26 advertised in World and U.S. News

27 advertised in World and These Times

60 advertised in These Times

52 advertised in U.S. News

50 advertised in World

(a) Draw a Venn diagram representing the 100 advertisers.

(b) How many advertised in none of these publications?

(c) How many advertised only in These Times?

(d) How many advertised in U.S. News or These Times?

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