Question

Degree of freedom is related to:

• A. Number of observations in a set
• B. Number of independent observations in a set
• C. A clear hypothesis under test
• D. Number of dependable observations in a set

Hint:

Degrees of freedom:
- Number of independent observations.
- Formula: df = n - k (where k is the number of parameters estimated).
- Used in statistical tests (t-test, ANOVA).

Answer 1

The Correct Option is B

Step 1: Understanding the Question:
This question tests knowledge of statistical concepts, specifically degrees of freedom.

Step 2: Detailed Explanation:
Degrees of freedom (df) represent the number of independent observations in a dataset.
It is calculated as the total number of observations minus the number of parameters estimated.
For example, in a sample of n observations, the degrees of freedom for variance is n-1.
Option (A) is incorrect because it does not account for constraints.
Option (C) and (D) are not related to degrees of freedom.
Thus, degrees of freedom is related to the number of independent observations.

Step 3: Final Answer:
Thus, degree of freedom is related to the number of independent observations in a set, which corresponds to option (B).
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