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The regression line for a set of data will have little meaning unless:
Select one:
a. the correlation coefficient is significant. x
b. the slope of the regression line is zero.
c. the standard deviation of errors is zero.
d. there are at least 30 data points chosen.

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The regression line for a set of data will have little meaning unless: Select one: a. the correlation coefficient is significant. x b. the slope of the regression line is zero. c. the standard deviation of errors is zero. d. there are at least 30 data points chosen.

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