(a)
To describe: The agent interviews people at an international airport, how could below factor described create bias in the survey results.
(a)

Answer to Problem 25PPE
The result of the survey question is biased.
Explanation of Solution
Given Information:
A travel agent wants to determine whether a trip to France is a popular vacation for young adults.
Calculation:
The objective is to determine whether each factor create bias in the survey result.
Since the agent interviews the people at an international airport, at the international airport most of the people who are present are likely to travel abroad.
Therefore, the result of the survey question is biased.
(b)
Todescribe:The agent asks, “Would you prefer to vacation in France or in Italy”, how could the factor described create bias in the survey results?
(b)

Answer to Problem 25PPE
The survey question creates a bias result.
Explanation of Solution
Given Information:
A travel agent wants to know whether a trip to France is a popular vacation for young adults.
Calculation:
The survey question, "Would you prefer to vacation in France or in Italy", contain the influence word France and Italy, which might be influence the answer of the people.
The respondents also might prefer neither France nor Italy.
Therefore, the survey question creates a bias result.
(c)
To describe: people interviewed 86% took a French class in high school, how could the factor described create bias in the survey results?
(c)

Answer to Problem 25PPE
The survey question creates a bias result.
Explanation of Solution
Given Information:
A travel agent wants to know whether a trip to France is a popular vacation for young adults.
Calculation:
Since
Because they know the French language, so it creates a bias result in the sample.
Therefore, the survey question creates a bias result.
Chapter 12 Solutions
High School Math 2015 Common Core Algebra 1 Student Edition Grade 8/9
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