what is the difference between a regression and an overfit why does residual change as the data points increase when using over-fitting in linear regression __________ does the residual decrease what makes up the sum of the squared residuals how to use a squared residual in cross validation what is res in cross validation how do you calculate res how to find x in a cross validation how to overfit data in cross validation which of the following is a measure of the sensitivity of over-fitting? what is the sum of res for comparing the results of the cross validation can i overfit a variable in a crossvalidation how to overfit a linear regression what is the value of the squared residual in cross validation how to calculate an average overfitting regression what is the sum of the squared residuals what is res in cross validation how does the sum of squared residuals (res) in linear regression work average res in crossvalidation does p value represent overfit