A teacher asks their students whether they studied for a quiz, then scores the quiz. A relative frequency table displays some of the information they collected.
What does the 86% represent?
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The accessory choices of 143 people are recorded in the table.
Create a relative frequency table that could be used to show the percentages of belt wearers who wear a watch or not, as well as the percentages of people without belts who wear a watch or not.
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A group of people are surveyed about whether they have any brothers or sisters or are an only child, and whether they have any pets.
Which value could go in the blank cell so that the percentage of only children that have no pets is 37.5%?
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A random sample of people are asked about their preferences regarding home decoration and their interest in fashion. Complete the two-way table so it has the characteristics listed.
150 people responded to the survey.
70% of the responders do not pay attention to fashion.
33 of the responders who prefer neutral decorations also do not pay attention to fashion.
20 of the responders who pay attention to fashion also prefer colorful decorations in their home.
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This lesson is from Illustrative Mathematics. Algebra 1, Unit 3, Lesson 2. Internet. Available from https://curriculum.illustrativemathematics.org/HS/teachers/1/3/2/index.html ; accessed 26/July/2021.
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