A random sample of adults are asked about their preferences for a first dinner date with someone. Complete the two-way table so that it has the characteristics listed.
122 people responded to the survey.
50 of the people who said they order dessert said they also prefer to split the check.
68 people prefer splitting the check.
56 people prefer to skip dessert rather than ordering one.
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6.
Students in the 7th, 8th, and 9th grade were asked whether they prefer to write in pen or pencil.
40 students prefer to write in pen.
60 students prefer to write in pencil.
Create values that could represent the number of students in the 7th, 8th, and 9th grade that responded to the survey.
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7.
A recent study observed the number of bike riders ages 0 to 20 that wear helmets. The results are represented in the table.
Make an observation based on a data value that is not in the table. Explain your reasoning.
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This lesson is from Illustrative Mathematics. Algebra 1, Unit 3, Lesson 1. Internet. Available from https://curriculum.illustrativemathematics.org/HS/teachers/1/3/1/index.html ; accessed 26/July/2021.
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