# MISCELLANEOUS EXERCISE - 4 - Fill in the Blanks

1. **Trend** components of time series is indicated by a smooth line.

2. **Seasonal** component of time series is indicated by periodic variation year after year.

3. **Seasonal** component of time series is indicated by a long wave spanning two or more years.

4. **Irregular** component of time series is indicated by up and down movements without any pattern.

5. Addictive models of time series **assume** independence of its components.

6. Multiplicative models of time series **does not assume** independence of its components.

7. The simplest method of measuring trend of time series is **graphical**

8. The method of measuring trend of time series using only averages is **moving average**

9. The complicated but efficient method of measuring trend of time series is **least square.**

10. The graph of time series clearly shows **trend** of it is monotone.