Question

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19. A pizza chain is willing to pay $0.75 to each person interviewed about his or her likes
and dislikes of types of pizza crust. Of the people interviewed, 220 liked thin crust,
270 liked thick crust, 70 liked both, and 50 did not like pizza at all. What was the
total cost of this survey?
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20. In a survey of 130 people, the following data were collected: 106 people subscribed
to the newspaper, 29 people subscribed to magazines, and 17 people were members
of a mail CD club. Seventeen subscribed to both the newspaper and the magazines, 5
people subscribed to magazines and were members of a CD club, and 10 people
subscribed to the newspaper and were members of a mail CD club. Three people
subscribed to both the newspaper and magazines and were members of a mail CD
club. Make and fill in a Venn diagram to illustrate this situation.
Bonus Problem:
Explain the Three-Way Principle.
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Answer 1

Answer:

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