Introduction to Statistics

A scientific body of knowledge which deals with collection, presentation, interpretation and analysis of data.

• Probability

• Statistics

• Sequence

• Geometry

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Facts , or a set of information or observation under study.

• Data

• Population

• Sample

• Variable

It is the collection of all individuals or objects from which the required information is to be obtained.

• Data

• Population

• Sample

• Variable

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It is a small portion or part of a population.

It is the subgroup, subset or the representative of a population.

• Data

• Population

• Sample

• Variable

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A particular information of interest about the members of either the population or a sample.

• Data

• Population

• Sample

• Variable

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Data that are non-numerical values.

• Categorical Data

• Numerical Data

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Every value in the set is a number.

• Categorical Data

• Numerical Data

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Which of the following is an example of categorical data?

• Age of Grade 7 Students

• Favorite subject of Grade 7 Students

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Which of the following is an example of numerical data?

• Favorite color of Grade 7 Students

• Weight of Grade 7 Students

Which of the following is a statistical question?

• What is your favorite color?

• Who is your Math teacher?

• How far do Grade 7 Students live from the school?

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