Math Practice 101
Homework Explained - Math Practice 101

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Grade 7 McGraw Hill Glencoe - Answer Keys
Chapter 10: Statistics; Lesson 2: Unbiased and Biased Samples


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Guided Practice

  • Question 1 (request help)

    Zach is trying to decide which of three golf courses is the best. He randomly surveyed people at a sports store and recorded the results in the table. Is the sample  method valid? If so, suppose Zach surveyed 150 more people. How many people would be expected to vote for Rolling Meadows?
  •    people
  • Question 2 (request help)

    To find how much money the average American family spends to cool their home, 100 Alaskan families are surveyed at random. Of the families, 85 said that they spend less than $75 per month on cooling. The researcher concluded that the average American family spends less than $75 on cooling per month. Is the conclusion valid? Explain.
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  • Question 3 (request help)

    Building on the Essential Question How is using a survey one way to determine experimental probability?
  • Type below:

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