Answer to Question 1
Answer: Primary sources provide raw data. You can collect primary data by surveying, interviewing, or observing people. Another form of primary research involves reading primary texts, such as websites and marketing materials. Primary research falls into two categories: Quantitative research gathers numerical data, such as structured survey responses to which you can assign numbers. Quantitative research allows you to classify, count, and compare data, allowing you to identify patterns. Qualitative research uses open-ended questions and observations to gather data that provide insights into the attitudes, values, and concerns of the research subjects.
Secondary sources are the results of other people's research, published in articles, books, or research reports and usually written by the researchers themselves.
Tertiary sources are books and articles that synthesize material from secondary sources, framing them for general readers. Tertiary sources include encyclopedias, textbooks, online tools like Wikipedia, and the results of most standard web searches. Sources like these are often very good for background research. However, they may oversimplify the research they present. You will have more credibility if you try to find the original material that these sources summarize.
Answer to Question 2
Answer: False
Explanation: A random sample is selected broadly from all available members of the population you want to study. A targeted sample is one that consists of only specific people from the group you are studying.
Three types of dispersion.
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