Regardless of the value of x, the standard deviation of the distribution of y values about the regression line is the same. This assumption of equal standard deviations about the regression line is called:
a. random error.
b. heteroscedasticity.
c. homoscedasticity.
d. pooled variances.
e. residual analysis.
Question 2
Simple linear regression requires that the scales of measurement be expressed in either:
a. nominal or ordinal.
b. ordinal or ratio.
c. interval or ratio.
d. nominal or ratio.
e. nominal or interval.
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