Solution: Is the survey worth paying for?

(Last Updated On: December 16, 2017)

Is the survey worth paying for?

Problem Statement: EE Board April 1997

A toothpaste firm claims that in survey of 54 people, they were using either Colgate, Hapee or Close-up brand. The following statistics were found: 6 people used all three brands, 5 used only Hapee and Close-up, 18 used Hapee or Close-up, 2 used Hapee, 2 used only Hapee and Colgate, 1 used Close-up and Colgate, and 20 used only Colgate. Is the survey worth paying for?

Problem Answer:

The survey is not worth paying for.

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Solution: Is the survey worth paying for?
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