If the Coefficient of Correlation Is

question 57

Multiple Choice

If the coefficient of correlation is .8, then the percentage of variation in the dependent variable explained by the estimated regression equation is _____.

• A) 0.80%
• B) 80%
• C) 0.64%
• D) 64%

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Definitions:

Trophic Level

The position an organism occupies in a food chain, defined by the number of steps it is from the primary source of energy (usually the sun); it indicates the organism's role in the transfer of energy and nutrients through an ecosystem.

Water Vapour

The gaseous phase of water, which is invisible and present in the atmosphere, contributing significantly to the greenhouse effect.

Earth Layers

The division of Earth's interior into distinct layers, including the crust, mantle, outer core, and inner core, each with unique physical and chemical properties.

Producers

Organisms in an ecosystem that produce biomass from inorganic compounds, usually through photosynthesis, forming the base of the food web.