Which of the Following Is the Correct Equation to Calculate $(\# \text { of rows - 2) } *(\text { \#of columns - 2) }$

question 25

Multiple Choice

Which of the following is the correct equation to calculate the degrees of freedom in a Chi-square test?

• A) \((\# \text { of rows - 2) } *(\text { \#of columns - 2) }\)
• B) \((\# o f \text { rows }-1) *(\# \text { of columns - 1) }\)
• C) \((\# o f \text { rows - 2) }+(\# \text { of columns }-2)\)
• D) \((\# \text { of rows }-1)+(\# \text { of columns }-1)\)

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Definitions:

Confidence Interval Estimate

A range of values, derived from sample data, that is likely to contain the value of an unknown population parameter, with a specified level of confidence.

Prediction Interval

A type of interval estimate of a predicted value of a variable based on a particular set of data, encompassing the uncertainty of the prediction.

Expected Value

The long-run average value of repetitions of the experiment it represents, in probability and statistics.

Error

The difference between a measured or calculated value and its true value; often used in statistics and scientific experiments.