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If (t_1, y_1), (t_2, y_2), (t_3, y_3), ..., (t_n, y_n) denote the time series and y_t are the trend values of the variable y, then Σ(y - y_t), the…

CUET UG 2025 — Mathematics Statistics & Applications

2025mcqmedium

If (t1,y1),(t2,y2),(t3,y3),...,(tn,yn)(t_1, y_1), (t_2, y_2), (t_3, y_3), ..., (t_n, y_n)(t1​,y1​),(t2​,y2​),(t3​,y3​),...,(tn​,yn​) denote the time series and yty_tyt​ are the trend values of the variable y, then ∑(y−yt)\displaystyle \sum(y - y_t)∑(y−yt​), the sum of the deviations of y from their corresponding trend value is equal to:

Official previous-year question

Held on 21 May 2025 · Verified 13 Jul 2026.

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