A steady increase in the number of mobile phone users in a country over a period of 20 years is an example of which component of a time series?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Secular trend
The secular trend is the smooth, regular and long-term movement of a series, seen over a long period of time.
A steady rise in mobile phone users year after year for 20 years is exactly such a long-term movement in one direction, so it is the secular trend.