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Time Series & Trend · Question 54 of 68

Question 54

MediumOriginal question

The trend line for a firm's sales is y=15+2.7xy = 15 + 2.7x, with xx in years from 2023. What trend value does it give for 2027?

Options for question 54

Show the answer and explanation
CorrectNot quiteAnswer C

Correct answer: C

Explanation

  1. 2027 is 4 years after 2023, so x=4x = 4.

  2. y=15+2.7×4=25.8y = 15 + 2.7 \times 4 = 25.8.

Worth noting

28.5 uses x=5x = 5, counting 2023 itself as the first year.

Concept
Estimating from the trend line
Typical time
90 s
Your time
—
The rule this testsA straight-line trend by least squares
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Ten questions from Time Series & Trend, at your own pace.

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Ten questions from Time Series & Trend, at your own pace.

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