In Simple Linear Regression, the Plot of Residuals Versus Fitted

question 54

Multiple Choice

In simple linear regression, the plot of residuals versus fitted values can be used to check for:

• A) normality.
• B) independence.
• C) a constant variance independent of x.
• D) All of the above.

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Definitions:

Cognitive Decline

The gradual loss of cognitive abilities, including memory, thinking, and reasoning skills, often associated with aging.

Dementia

A broad category of brain diseases that cause a long-term and often gradual decrease in the ability to think and remember, affecting daily functioning.

Resilience

The ability of an individual to recover quickly from difficulties; toughness or the capacity to bounce back from adversity.

Adversity

Difficult or unpleasant situations or conditions that a person faces, often challenging their resilience and coping mechanisms.