Answer:
Although there are many other methods to collect quantitative data, those mentioned above probability sampling, interviews, questionnaire observation, and document review are the most common and widely used methods either offline or for online data collection.
There are several methods by which you can collect quantitative data, which include:
Experiments.
Controlled observations.
Surveys: paper, kiosk, mobile, questionnaires.
Longitudinal studies.
Polls.
Telephone interviews.
Face-to-face interviews.
Explanation:
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