Which of the following is the correct formula for total variation?
(a) Total Variation = Residual Variation – Regression Variation
(b) Total Variation = Residual Variation + Regression Variation
(c) Total Variation = Residual Variation * Regression Variation
(d) All of the mentioned
The question was posed to me in an interview.
The query is from Residual Variation and Multivariate topic in chapter Statistical Inference and Regression Models of Data Science