Can you please assist?

How do you solve for the total sum of squared corrected with the sum of squares residual for multiple models and a sample standard deviation? Preliminary descriptive statistics on the 19 values of Y = V02 max yielded a sample mean 7537.052 and s=8.7017 Suppose several multiple predictor models are t and you are given the following. Model Predictors in the model Sum of S n uares Residual (due error) X1 , X2 , X3 790.76 X1 , X2 791.49 1270.24 1357.48 X2 814.41 X3 1281.19 2 3 4 s 6 7