In one of our articles, we have already discussed that the ARIMA models combine two models and 1 method. Two models are Auto Regression(AR) and Moving Average(MA). One method is differencing(I). These ...

Quadratic graph lines are U- or Ո-shaped, which is called a parabola. A linear graph can be drawn using only three points. A quadratic graph is a curve, so more points are plotted to support accuracy.