Why Is It Important to Divide by Df to Compute

question 60

Multiple Choice

Why is it important to divide by df to compute sample variance?

• A) Doing so makes the sample variance an unbiased estimator of the population variance.
• B) Doing so ensures that the value for sample variance varies between 0 and 1.
• C) Doing so minimizes the likelihood that the sample variance will be a negative value.
• D) It is not important; there is no advantage for dividing by df.

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Definitions:

Response Bias

A tendency for participants to respond to questions or tasks in a particular way that is not directly related to the content of the questions or tasks.

Sensory Capacity

The maximum amount of sensory information that an individual can process at any given time.

Sensory Adaptation

The process by which sensory receptors become less sensitive to constant stimuli over time, allowing organisms to focus on changes in their environment.

Feature Detection

The process by which the brain identifies specific elements of visuals, such as lines, edges, or movements, to interpret what is seen.