Time series analysis

2. The most commonly used mathematical method for measuring the trend is Method of ……. squares.
3. When the production of a thing is minimum, this stage is called………
6. Depression in business is………..
10. The graph of time series is called……..
12. An orderly set of data arranged in accordance with their time of occurrence is called………series.
14. In time series seasonal variations can occur within a period of ……… year.
15. The secular trend is measured by the method of semi-averages when Trend is………..

1. A time series consists of ……………. Variations.
4. The method of moving average is used to find the……… trend.
5. The unsystematic sequence which follows irregular pattern of variations is called………
7. In a straight line equation Y = a + bX; b is the …………..
8. A trend is the better fitted trend for which the sum of squares of residuals is………..
9. Damages due to floods, droughts, strikes fires and political disturbances are…………
11. Increase in the number of patients in the hospital due to heat stroke is………..variation.
13. The systematic components of time series which follow regular pattern of variations are called……..