Consider the regression equation 
= b0 + b1x + b2d with a dummy variable d. If d changes from 0 to 1, the intercept changes by:
Definitions:
Evolutionary Theory
A scientific explanation for the diversity of life on Earth, focusing on how species change over generations through mechanisms such as natural selection.
Dating
A stage of romantic relationships where two people engage in social activities to assess mutual compatibility as partners in a more committed intimate relationship.
Mating
The pairing of individuals for reproductive purposes, involving the selection of partners and often complex courtship behaviors.
Natural Selection
A process in evolutionary biology where organisms better adapted to their environment tend to survive and produce more offspring, driving the evolution of species.
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