The Degrees of Freedom on a 3 by 3 Chi

question 76

Multiple Choice

The degrees of freedom on a 3 by 3 chi square are equal to

• A) 9
• B) 4
• C) 3
• D) cannot tell from the above information

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Definitions:

Resample Means

A statistical method involving the calculation of the mean from multiple subsamples of a dataset to assess variability.

Original Data Set

The initial collection of data or observations before any processing or analysis has been conducted.

Trimmed Mean

A measure of central tendency calculated by removing a certain percentage of the smallest and largest values from a data set before calculating the mean of the remaining data.

Bootstrap Confidence Interval

A method for estimating the uncertainty of a statistic by resampling the original data and calculating the statistic across these samples to form an interval.