How many statements are correct about business forecasting? (A) 0 (B) 1 (C) 2 (D) 3 (E) 4 Statement 1. Time series forecasting is the same as intrinsic forecasting and causal forecasting is the same as extrinsic forecasting.. Statement 2. Stationarity is the overall nature of a time series. Statement 3. A component is a cause of variability within a time series. Statement 4. For a non-stationary time series with only a random component, techniques indicated are moving average and exponential smoothing.