# 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.