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Overview of Statistics

Overview of Statistics. Data consists of information coming from observations, counts, measurements, or responses. The singular for data is datum. Statistics is the science of collecting, organizing, analyzing, and interpreting data in order to make decisions.

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Overview of Statistics

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  1. Overview of Statistics

  2. Data consists of information coming from observations, counts, measurements, or responses. The singular for data is datum. Statistics is the science of collecting, organizing, analyzing, and interpreting data in order to make decisions.

  3. Population: The collection of all outcomes, responses, measurements, or counts that are of interest. Sample: A subset of a population

  4. A parameter is a numerical description of a population characteristic. (Notice they both start with a p!) A statistic is a numerical description of a sample characteristic. (Notice these both start with an s!)

  5. Descriptive Statistics is the branch of statistics that involves the organization, summarization, and display of data. Inferential Statistics is the branch of statistics that involves using a sample to draw conclusions about a population. A basic tool in the study of inferential statistics is probability.

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