Introduction to Statistics and Probability - Yewlu, Yilekal
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Depending on how data can be used statistics is sometimes divided in to two main areas or branches.1. Descriptive Statistics: is concerned with summary calculations, graphs, charts and tables.2. Inferential Statistics: is a method used to generalize from a sample to a population. For example, the average income of all families (the population) in Ethiopia can be estimated from figures obtained from a few hundred (the sample) families.- It is important because statistical data usually arises from sample.- Statistical techniques based on probability theory are required.

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Produktbeschreibung
Depending on how data can be used statistics is sometimes divided in to two main areas or branches.1. Descriptive Statistics: is concerned with summary calculations, graphs, charts and tables.2. Inferential Statistics: is a method used to generalize from a sample to a population. For example, the average income of all families (the population) in Ethiopia can be estimated from figures obtained from a few hundred (the sample) families.- It is important because statistical data usually arises from sample.- Statistical techniques based on probability theory are required.
Autorenporträt
Name: Yilekal Yewlu Address Woliso ETHIOPIAPlace of Birth Dejen, East Gojjam, Amhara, EthiopiaLecturer at Ambo University Woliso campusEducation: B.Sc in applied mathematics from Hawassa University and M.SC in Mathematics from Jimma University