ABC26PH0954 · Data Analysis

Subject: Physical Chemistry · Chapter: Data Analysis · Topic: Regression Fitting · Exam: NET DEC 2011 · Marks: 2 · Difficulty: Medium

In least square fitting of a data set $\left\{\mathrm{X}_{\mathrm{i}} \mathrm{Y}_{\mathrm{i}}\right\}$ to the equation $\mathrm{Y}=$ A.X, the regression coefficient (A) is estimated by
(a)$\Sigma \mathrm{Y}_{\mathrm{i}}^{2} / \Sigma \mathrm{X}_{\mathrm{i}}^{2}$
(b)$\Sigma \mathrm{X}_{\mathrm{i}} \mathrm{Y}_{\mathrm{i}} / \Sigma \mathrm{X}_{\mathrm{i}}^{2}$
(c)$\Sigma \mathrm{X}_{\mathrm{i}} \mathrm{Y}_{\mathrm{i}} / \Sigma \mathrm{Y}_{\mathrm{i}}^{2}$
(d)$\Sigma \mathrm{X}_{\mathrm{i}}^{2} / \Sigma \mathrm{Y}_{\mathrm{i}}^{2}$
Answer
Answer (as printed): B
Explanation
No explanation was printed for this question.

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