(a)
To find: The survey every tenth person leaving a bicycle repair store
(a)
Answer to Problem 36PPE
The survey every tenth person leaving a bicycle repair store sample is biased.
Explanation of Solution
Given information:
There are ten people.
Calculation:
Then survey every
The value
Therefore, the survey every tenth person leaving a bicycle repair store sample is biased.
(b)
To find: The call homes in your neighborhood every morning Monday through Friday for one week.
(b)
Answer to Problem 36PPE
The sampling method is random and the result unbiased.
Explanation of Solution
Given information:
The given statement is writing a article for the school newspaper about support of the mayor’s proposal for bike paths
Calculation:
Calculate the statement is
Therefore, the sampling method is random and the result unbiased.
(c)
To find: The send e-mail to
(c)
Answer to Problem 36PPE
The sampling method is random and the result unbiased sample.
Explanation of Solution
Given information:
The given statement is writing a article for the school newspaper about support of the mayor’s proposal for bike paths
Calculation:
Calculate the statement is
Therefore, the sampling method is random and the result unbiased sample.
(d)
To find: The poll every fifth person at a popular local sandwich shop.
(d)
Answer to Problem 36PPE
The survey every tenth person leaving a bicycle repair store sample is biased.
Explanation of Solution
Given information:
The given statement is writing a article for the school newspaper about support of the mayor’s proposal for bike paths
Calculation:
Calculate the statement is
Then survey every
Substitute the value
Therefore, the survey every tenth person leaving a bicycle repair store sample is biased.
Chapter 12 Solutions
High School Math 2015 Common Core Algebra 1 Student Edition Grade 8/9
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