
To compare and contrast:The three data collection techniques described in the lesson.

Answer to Problem 22HP
Similarity: All are used to collect data.
Difference: A survey collects data through responses, an observational study collects data through observation and experiment collects data by changing the sample.
Explanation of Solution
The three data collection techniques are:
- Survey.
- Observational study.
- Experiment.
The difference between them are as follows:
- Survey: Data is collected through responses by a sample.
- Observational study: Data is collected through observing the sample
- Experiment: Collects data by changing the sample.
The similarity between them is as follows:
All are used to collect data to draw conclusions about the entire population.
Chapter 12 Solutions
Algebra 1
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