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Based on the data available for the production (y_i in thousand tons) of a cloth factory for 7 years (x_i) using the method of least squares, the…

CUET UG 2025 — Mathematics Statistics & Applications

2025mcqmedium

Based on the data available for the production (yiy_iyi​ in thousand tons) of a cloth factory for 7 years (xix_ixi​) using the method of least squares, the straight line trend is given by y−a+bxy - a + bxy−a+bx with ∑yi=608,∑xi=0,∑xiyi=116,∑xi2=28\displaystyle \sum y_i = 608, \sum x_i = 0, \sum x_iy_i = 116, \sum x_i^2 = 28∑yi​=608,∑xi​=0,∑xi​yi​=116,∑xi2​=28. Then, the increase in production per year is:

Official previous-year question

Held on 3 Jun 2025 · Verified 13 Jul 2026.

Options

  1. A

    86.860 tons

  2. B

    4.143 tons

  3. C

    1,16,000 tons

  4. D

    6,08,000 tons

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