Variable X Is Correlated with Variable Y

question 56

Multiple Choice

Variable X is correlated with Variable Y.Which of the following could explain this correlation?

• A)X does not cause Y.
• B)Y does not cause X.
• C)A third variable causes or influences both X and Y.
• D)correct causes Y,and vice versa.

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Definitions:

Rainfall

Precipitation in the form of water droplets that falls from clouds to the ground.

Eutrophication

Nutrient enrichment of an aquatic habitat.

Nutrient Concentrations

The amount of nutrients present in a given volume or mass of soil, water, or air, important for the growth and health of plants and animals.

Savannas

Savannas are grassland ecosystems with scattered trees and shrubs, located in tropical and subtropical regions, characterized by seasonal water availability.