![]() Measures of central tendency describe the central distribution of data and include the mode, median, and mean. ![]() Common measures of descriptive statistics are those of central tendency and dispersion. ![]() Descriptive statistics measure, describe, and summarize features of a collection of data/sample without making inferences that go beyond the scope of that collection/sample. At the same time, flaws in study design can affect statistics and lead to incorrect conclusions. Statistics is the science of collecting, analyzing, and interpreting data, and a good epidemiological study depends on statistical methods being employed correctly. Statistical analysis is one of the principal tools employed in epidemiology, which is primarily concerned with the study of health and disease in populations.
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