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16-12-2022
Mathematics

Answered

Which one of the following statements must hold for EVERY CASE concerning the residual sums of squares for the restricted and unrestricted regressions? (a) URSS > RRSS (b) URSS ï³ RRSS (c) RRSS > URSS (d) RRSS ï³ URSS.
Which one of the following is the most appropriate as a definition of R 2 in the context that the term is usually used? (a) It is the proportion of the total variability of y that is explained by the model (b) It is the proportion of the total variability of y about its mean value that is explained by the model (c) It is the correlation between the fitted values and the residual

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