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10 Articles in: Research Methods. View More. Surveys are the most commonly used tool in sociological research, whether in the form of a questionnaire, interview, or telephone poll. Learn more about surveys here.
Weighted average, or weighted mean, is a method to compute a type of mean of a set of data in which different elements carry a different level of importance or weight. The most popular usage of weighted average is used in descriptive statistics, although the calculation is also used in various other areas of math. An extremely common example of the need for using a weighted average calculator is when grades are being calculated.