Question 14
EasyOriginal questionA two-wheeler maker studies its monthly sales from 2010 to 2025. It notes four features: sales jump every October and November in the festival season; over the fifteen years they climb steadily as incomes rise; they sag for two or three years at a stretch when the wider economy slows, then recover; and they collapsed in April 2020 when a nationwide lockdown shut its showrooms.
Which component is the two-wheeler maker's festive jump each October and November?
Show the answer and explanation
Correct answer: A
Explanation
It comes back at the same time every year.
A movement that repeats within each year is seasonal.
Worth noting
It is not irregular: it can be predicted from the calendar.
- Concept
- Seasonal variation
- Typical timeTypical
- 90 s
- Your timeYours
- —
Ten questions from Time Series & Trend, at your own pace.