# SOC 201 UOW Methods for Analyzing Two Variables Relationship Lab

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Social Science
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University of Washington
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SOC 201 Lab 11 Problems
In the last few lectures (April 16, 21, 23, 28), you have been learning about methods for
analyzing the relationship between two variables. These methods are for variables that are
continuous (or discrete variables that are being treated as continuous) and they include
scatterplots, correlation and bivariate regression. You will practice some of these skills in the
homework assignment for this week (HOMEWORK #11). This lab will ask you to think a bit
more conceptually about these research situations and statistical methods. It is worth 12 points.
1. Write a couple of sentences to explain why it is useful to construct a scatterplot graph
before using correlation or linear regression to analyze the relationship between two
variables. (2 points)
It helps determine whether there is a relationship between paired data and to give an idea of the
relationship between two variables
2. Match each of the following pairs of variables with the best option from among the
scatterplot graphs below. (2 points each)
a. The number of units in an apartment or condo building (X) and the number of air
conditioners in it (Y).
b. The unemployment rate in a state (X) and the state’s average family expenditure on
vacation travel (Y).
c. The number of letters in a person’s last name (X) and their annual income (Y).
1. 2. 3.
B a
c
3. 2. (1 point each)
a. y = 2 + 2x

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SOC 201 Lab 11 Problems In the last few lectures (April 16, 21, 23, 28), you have been learning about methods for analyzing the relationship between two variables. These methods are for variables that are continuous (or discrete variables that are being treated as continuous) and they include scatterplots, correlation and bivariate regression. You will practice some of these skills in the homework assignment for this week (HOMEWORK #11). This lab will ask you to think a bit more conceptually about these research situations and statistical methods. It is worth 12 points. 1. Write a couple of s ...
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