In simple linear regression, the coefficient of correlation r and the least squares estimate b₁ of the population slope B₁: a. must be equal b. must have opposite signs C. must have the same sign d. may have opposite signs or the same sign

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In simple linear regression, the coefficient of correlation r and the least squares
estimate b₁ of the population slope B₁:
a. must be equal
b. must have opposite signs
C. must have the same sign
d.
may have opposite signs or the same sign
The coefficient of determination (R²) tells us
a. that the coefficient of correlation is larger than 1
b. whether r has any significance
Transcribed Image Text:In simple linear regression, the coefficient of correlation r and the least squares estimate b₁ of the population slope B₁: a. must be equal b. must have opposite signs C. must have the same sign d. may have opposite signs or the same sign The coefficient of determination (R²) tells us a. that the coefficient of correlation is larger than 1 b. whether r has any significance
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