Question 43
MediumOriginal questionA hill resort's guests, in hundreds, for the four quarters of two years were: year 1: 12, 30, 8, 20; year 2: 14, 33, 9, 24.
Against which quarter is the resort's first centred moving average placed?
Show the answer and explanation
CorrectNot quiteAnswer D
Correct answer: D
Explanation
The first total, quarters 1–4, centres between quarters 2 and 3; the second, quarters 2–5, between 3 and 4.
Averaging the two lines the result up with quarter 3 of year 1.
Worth noting
Between quarters 2 and 3 is where an uncentred 4-quarter average falls; centring moves it onto a quarter.
- Concept
- Where a centred average sits
- Typical timeTypical
- 120 s
- Your timeYours
- —
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