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Chapter 1 Representing Data
Yes or No

The 450 students at Ridgeway High School were each given a questionnaire to choose the act that would be booked for the next assembly.


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Each student was asked to circle one answer for each question and to choose only one first-choice act. Some students did not follow instructions and chose two first-choice acts.

When the results were tallied, there were 220 yes answers for the magician, 180 yes answers for the acrobats, and 100 yes answers for the comedian. How many students chose two first-choice acts? How many of the students chose one first-choice act?


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Note: Brain teasers are often open to more than one interpretation, and multiple answers may be possible. Sample solutions are shown.





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