Homoscedasticity-Heteroscedasticity
Gist
Is the Variance in the Error and Residualss constant? If yes, you have homoscedasticity. If no, then you have heterodescdasticity .
Though it's not a big deal
I read an interesting blogpost about heteroscedasticity where Allen Downey suggests that it's not a big deal
Regression
One of the assumption that you should check when you're doing a singe-linear regression. If you