What Are Degrees of Freedom?

Degrees of freedom refers to the maximum number of logically independent values, which are values that have the freedom to vary, in the data sample.

KEY TAKEAWAYS

  • Degrees of freedom refers to the maximum number of logically independent values, which are values that have the freedom to vary, in the data sample.
  • Degrees of freedom are commonly discussed in relation to various forms of hypothesis testing in statistics, such as a chi-square.
  • Calculating degrees of freedom is key when trying to understand the importance of a chi-square statistic and the validity of the null hypothesis.

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