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Concept explainers
To find: Whether the given situation describes a survey, an experiment, or an observational study.
![Check Mark](/static/check-mark.png)
Explanation of Solution
Given information:
The given situation is about the food.
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.
In the given situation, 100 students are observed to determine how many students eat in the cafeteria, so as per the definition of the observation study that is members of a sample are measures or observed without being affected by the study, the given situation is an observation study.
Chapter 11 Solutions
Glencoe Algebra 2 Student Edition C2014
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