Advanced Topic: What Does It Mean When SS_Total Minus SS_Error

question 8

Multiple Choice

Advanced topic: What does it mean when SS_Total minus SS_Error equals zero?

• A)This is the best case-it means there is zero error.
• B)This is the worst case-it means the prediction model has reduced zero error.
• C)The proportionate reduction in error is 50%.
• D)The underlying correlation is negative.

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Definitions:

Pioneer Species

First species to colonize previously disrupted or damaged ecosystems, initiating an ecological succession that leads to a more biodiverse steady-state ecosystem.

Keystone Species

A vital species within an ecosystem whose presence significantly influences the biodiversity and stability of the environment.

Exotic Species

Organisms introduced to a new habitat where they are not naturally found, often causing harm to the local ecosystem and native species.

Indicator Species

Species that serve as a sign or indicator of the health or condition of an ecosystem, often sensitive to environmental changes.