Question: If computing a causal linear regression model of Y = a + bX and the resultant r 2 is only 0 . 0 9 ,

If computing a causal linear regression model of Y = a + bX and the resultant r2 is only 0.09, then one would be able to conclude that
Group of answer choices
Y = a + bX is a good forecasting method.
Y = a + bX is not a good forecasting method.
a multiple linear regression model is a good forecasting method for the data.
a multiple linear regression model is not a good forecasting method for the data.
None of the above

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