Homework Explained - Math Practice 101

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Chapter 15:Two-Way Tables; Lesson 1: Two-Way Frequency Tables

### Guided Practice

• Question 1

In a survey of 50 students, 60% said that they have a cat. Of the students who have a cat, 70% also have a dog. Of the students who do not have a cat, 75% have a dog. Complete the two-way table.

a. Enter the total number of students surveyed in the bottom right cell of the table.

• Type below:
• Question 1

b. Fill in right column.

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• Question 1

c. Fill in top row.

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• Question 1

d. Fill in second row.

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• Question 1

e. Fill in last row.

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• Question 2

The results of a survey at a school are shown. Is there an association between being a boy and being left-handed? Explain.

### ESSENTIAL QUESTION CHECK-IN

• Question 3

Voters were polled to see whether they supported Smith or Jones. Can you construct a two-way table of the results? Why or why not?

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