The following data on fertility rates were obtained from Eurostat on seven European countries in 2006.Suppose you obtain the following equation which predicts the total fertility rate using information on the mean age of childbearing: Y = 9.34 - 0.25x.What is the predicted total fertility rate for a country with a mean age at childbearing of 31.5 years? Why would it be inappropriate to predict,say,the TFR for a country with a mean age at childbearing of 22.7 years?
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