Match List I with List II
| LIST I | LIST II | ||
| A. | CYCLICAL COMPONENT | I. | It is also known as trend series, is smooth, regular and long term movement of series, observed over a long period of time. |
| B. | SECULAR TREND COMPONENT | II. | Fluctuations are unaccountable, unpredictable or sometimes caused by unforeseen circumstances |
| C. | IRREGULAR COMPONENT | III. | Time series shows an oscillatory movement where period of oscillation is more than one year. |
| D. | SEASONAL COMPONENT | IV. | When time series captures the periodic variability in the data, capturing regular pattern of variability within one year. The main cause can be climate change etc. |
Choose the correct answer from the options given below :
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → A-III, B-I, C-II, D-IV
(A) CYCLICAL COMPONENT
This matches (III). Cyclical variations are oscillations (booms and slumps of business cycles) whose period is more than one year.
(B) SECULAR TREND COMPONENT
This matches (I). The trend is the smooth, regular, long-term movement of the series over a long period.
(C) IRREGULAR COMPONENT
This matches (II). Irregular variations are unpredictable fluctuations caused by unforeseen events.
(D) SEASONAL COMPONENT
This matches (IV). Seasonal variations repeat regularly within one year (weather, festivals and similar causes).
CBSE Applied Mathematics (Class XII):
Index Numbers and Time-based Data
