Dell-EMC
E20-007 · Question #17
On analyzing your time series data you suspect that the data represented as y1, y2, y3, ... , yn-1, yn may have a trend component that is quadratic in nature. Which pattern of data will indicate…
The correct answer is B. (y3-y2) - (y2-y1) = .........= (yn-yn-1)-(yn-1-yn-2). See the full explanation below for the reasoning.
Question
On analyzing your time series data you suspect that the data represented as y1, y2, y3, ... , yn-1, yn may have a trend component that is quadratic in nature. Which pattern of data will indicate that the trend in the time series data is quadratic in nature?
Options
- A(y2-y1) = (y3-y2) = ....... = (yn-yn-1)
- B(y3-y2) - (y2-y1) = .........= (yn-yn-1)-(yn-1-yn-2)
- C((y2-y1) /y1 ) * 100% = .......((yn-yn-1)/yn-1) * 100%
- D(y4-y2) - (y3-y1) = .........= (yn-yn-2)-(yn-1-yn-3)
How the community answered
(58 responses)- A10% (6)
- B81% (47)
- C5% (3)
- D3% (2)
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