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Suppose for a regression fit to some data with explanatory variable number of years of experience and response variable salary, R2 = 0.92. Which of the following is a correct interpretation of this value?
A) Our model will correctly predict salary 92% of the time.
B) 92% of the variation in the sample salary values can be attributed to the predictor Salary, the mean salary in the sample.
C) We are 92% confident that our model is useful for predicting salary from the given predictor variables.
D) 8% of the variation in the sample salary values has not been accounted for upon fitting the model.
E) There is an 8% chance that our explanatory variable is not valuable for predicting salary.
Please explain your reasoning.
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