What Is the Formula Used to Calculate Degrees of Freedom

question 12

Multiple Choice

What is the formula used to calculate degrees of freedom for a t-test for dependent groups?

• A)n − 1
• B)n₁ + n₂ − 1
• C)n₁ − 1 + n₂
• D)n₁ + n₂

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Definitions:

Probability

The measure of the likelihood that an event will occur, quantified as a number between 0 and 1.

Sample Space

The complete set of all possible outcomes of a random experiment or the entire range of values that a random variable can assume.

Possible Outcomes

The set of all possible results that can occur from a particular experiment or event.

Experiment

An experiment is a controlled study in which variables are manipulated to determine their effects on other variables.