Concept explainers
To find: The objective of the survey, population, and two unbiased survey questions.
Explanation of Solution
Given information:
The given situation is, “A car manufacturer wants to determine what the demand in the US is for hybrid vehicles”.
Concept used:
Survey: In a survey, data are collected from the responses given by members of a population regarding their characteristics, behaviours, or opinions.
Experiment: In an experiment, the sample is divided into two groups:
- An experiment group that undergoes a change, and
- A control group that does not undergoes the change.
Observational study: In an observational study, members of a sample are measures or observed without being affected by the study.
The objective of the car manufacturer is to know the demand of the hybrid vehicle in U.S. The population of the survey should be the people who already have the hybrid vehicle and the people who do not have any vehicle but are in the position to buy.
The two unbiased survey questions are,
- Which vehicle would you prefer, hybrid one or normal one?
- What is your opinion about the hybrid vehicles?
Chapter 11 Solutions
Glencoe Algebra 2 Student Edition C2014
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