The Degrees of Freedom for a Chi-Square Test for Independence

question 7

Multiple Choice

The degrees of freedom for a chi-square test for independence test are ______.

• A) k - 1
• B) n - 1
• C) (k₁ - 1)(k₂ - 1)
• D) (k - 1)(n - 1)

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Definitions:

Age Structure

The distribution of a population by age, often visualized in a population pyramid, which helps in understanding population growth and decline dynamics.

Percentages

A mathematical concept used to express a number as a fraction of 100.

Age Level

A specific stage or period in an individual's life or development process, often used as a basis for grouping in educational or social contexts.

Life-support Systems

Systems that provide all the necessary support for life to sustain, either biologically or through technological means, in natural or artificial environments.