To explain: The sampling method used to estimate how many students have after-school jobs.
The sampling method used to estimate how many students have after-school jobs by selecting students randomly for the study is random sampling method.
Given:
A study is conducted to estimate how many students have after-school jobs. A study is conducted by interviewing randomly selected students boarding buses at the end of the school day.
Concept used:
The random sampling method is where all objects of the sample are equally likely to be selected in the sample.
Explanation:
The sample was created by randomly interviewing students boarding buses at end of the school day and each student has an equal chance of being selected in the sample, thus it is considered a simple random sampling.
The sample was selected randomly selecting students boarding buses at end of the school day. Thus there is no bias as the sample selection is randomly done.
Chapter 11 Solutions
High School Math 2015 Common Core Algebra 2 Student Edition Grades 10/11
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