Ten observations were provided for a dependent variable y and two independent variables x1 and x2; for these data, SST=15,183.4andSSR=14,061.5. (a) Compute R2. (Round your answer to three decimal places.) R2= (b) Compute Ra2. (Round your answer to three decimal places.) Ra2= , after adjusting for the number of independent variables in the model, we see that % of the variability in y has been accounted for