TIME SERIES
1. A set of observations recorded at an equal interval of time is called
Array data
Data
Geometric Series
Time series data
2. Additive model for time series Y = . . .
T $\times$ S $\times$ C $\times$ I
T $-$ S $-$ C $-$ I
T + S + C + I
None of these
3. The following are the movement(s) in the secular trend
Smooth
Regular
Steady
None of these
4. In moving average method we cannot find trend values of some
End Periods
Middle Period
Starting and End Periods
Starting Periods
5. Time series data have a total number of components?
3
6
5
4
6. A rise in prices before Eid is an example of

Cyclical Trend
Secular Trend
Irregular Trend
Seasonal Trend
7. Graph of time series is called
Line graph
Trend
Historigram
Histogram
8. Prosperity, Recession, and depression in a business is an example of
Irregular Trend
Secular Trend
Cyclical Trend
Seasonal Trend
9. The best-fitted trend line is one for which sum of squares of residuals or errors is
Positive
Minimum
1
Negative
Maximum
10. Multiplicative model for time series is Y = . . .
T $\times$ S $\times$ C $\times$ I
T + S + C + I
T $-$ S $-$ C $-$ I
None of these

11. The most commonly used mathematical method for measuring the trend is
Semi Average
Moving Average
Free Hand Curve
Least Squares
12. Seasonal variations are
Short term variation
Long term variation
Sudden variation
None
13. In the theory of time series, shortage of certain consumer goods before the annual
budget is due to
Seasonal Variation
Secular Trend
Irregular Variations
Cyclical Variation
14. In the measurement of the secular trend, the moving averages:
Smooth out the time series
Give the trend in a straight line
Measure the seasonal variations
None of these
15. A fire in a factory delaying production for some weeks is
Secular Trend
Cyclical Trend
Irregular Trend
Seasonal Trend
Quiz 2

16. The time series analysis helps to
Compare the two or more time series