Answer the following questions.
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1.
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Joan
wanted to find out if the people in her city liked ice cream. Joan went to a food court in a mall to
ask the people if they liked ice cream. She thought it would be a good location since food court has
3 different ice cream stores. The ice cream stores and the table she sat at were away from the main
part of the mall. She asked as many people as she could as they walked by her table. Is the sample
she collected a random sample?
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2.
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Is
there a bias in the sample that Joan collected? If it is biased, what factors lead to the sample
being biased?
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3.
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Simon
wanted to find out what flavor of ice cream people liked most. He asked all the students in the 5th
grade at his school. Is there a bias in the sample that Simon collected?
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4.
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Jane
did the same survey as Simon, but she called every 100th person in the phone book and asked them what
their favorite ice cream flavor is. Is there a bias in the sample that Jane collected?
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