Give a brief general description of the number of degrees of freedom.
A. The number of degrees of freedom for a collection of sample data is the number of sample values that are determined after certain restrictions have been imposed on all data values.
B. The number of degrees of freedom for a collection of sample data is the total number of sample values.
C. The number of degrees of freedom for a collection of sample data is the number of unique, non-repeated sample values.
D. The number of degrees of freedom for a collection of sample data is the number of sample values that can vary after certain restrictions have been imposed on all data values.

The answer would be option (A) The number of degrees of freedom for a collection of sample data is the number of sample values that are determined after certain restrictions have been imposed on all data values.

What is the number of degrees of freedom?

The number of degrees of freedom in statistics refers to the number of values that can fluctuate in a statistic's final calculation.

Various amounts of data or information can be used to estimate statistical parameters. The degrees of freedom refers to the number of independent data points used to estimate a parameter. The number of independent scores that are utilized in an estimate of a parameter, minus the number of parameters used as intermediary stages in the estimation of the parameter itself, is generally considered to be the measure of the degree of freedom of the estimate.

Hence, the number of sample values that are selected after specific limitations have been placed on all data values is the number of degrees of freedom available for a collection of sample data.

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