Include part 2 of time series models
Include part 2 of time series models

jrmontag/Data-Science-45min-Intros,jeffakolb/Data-Science-45min-Intros,jrmontag/Data-Science-45min-Intros,fionapigott/Data-Science-45min-Intros,DrSkippy/Data-Science-45min-Intros,DrSkippy/Data-Science-45min-Intros,fionapigott/Data-Science-45min-Intros,jeffakolb/Data-Science-45min-Intros,jrmontag/Data-Science-45min-Intros,jrmontag/Data-Science-45min-Intros,fionapigott/Data-Science-45min-Intros,jeffakolb/Data-Science-45min-Intros,fionapigott/Data-Science-45min-Intros,DrSkippy/Data-Science-45min-Intros,DrSkippy/Data-Science-45min-Intros,fionapigott/Data-Science-45min-Intros,jeffakolb/Data-Science-45min-Intros,jrmontag/Data-Science-45min-Intros,DrSkippy/Data-Science-45min-Intros,jeffakolb/Data-Science-45min-Intros