The actual value y may differ from the expected value E(y). Therefore, we add a ________ ________ term ε to develop a simple linear regression model.
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Q8: Another name for an explanatory variable is
Q9: The sample correlation coefficient cannot equal zero.
Q10: A residual is the difference between the
Q11: Covariance can be used to determine if
Q12: If two linear regression models have the
Q14: The covariance can be used to determine
Q15: Simple linear regression includes more than one
Q16: The correlation coefficient is unit-free.
Q17: The covariance and correlation coefficient are measures
Q18: The correlation coefficient captures only a _
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