Math Practice 101
Homework Explained - Math Practice 101

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Grade 8 HMH Go Math - Answer Keys
Chapter 15:Two-Way Tables; Lesson 2: Two-Way Relative Frequency Tables


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Guided Practice

  • Question 1 (request help)

    In a class survey, students were asked to choose their favorite vacation destination. The results are displayed by gender in the two-way frequency table.

    a. Find the total for each gender by adding the frequencies in each row. Write the row totals in the Total column.
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    b. Find the total for each preferred vacation spot by adding the frequencies in each column. Write the column totals in the Total row.
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    c. Write the grand total (the sum of the row totals and the column totals) in the lower-right corner of the table.
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    d. Create a two-way relative frequency table by dividing each number in the above table by the grand total. Write the quotients as decimals.
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    e. Use the table to find the joint relative frequency of students surveyed who are boys and who prefer vacationing in the mountains.
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    f. Use the table to find the marginal relative frequency of students surveyed who prefer vacationing at the seashore.
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  • Question 1 (request help)

    g. Find the conditional relative frequency that a student surveyed prefers vacationing in the mountains, given that the student is a girl. Interpret this result.
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ESSENTIAL QUESTION CHECK-IN

  • Question 2 (request help)

    How can you use a two-way frequency table to learn more about its data?
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