Mathematics · Regression Analysis

Consider the following statements regarding the calculation of the linear regression line y = a + bx: 1. n represents the total number of pairs of data items used. 2. (Σx)2 is calculated by multiplying Σx by Σx. 3. Σxy is calculated by multiplying Σx by Σy. Which of the statements given above are correct?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

11, 2 and 3
22 and 3 only
31 and 3 only
41 and 2 only✓

Correct answer

1 and 2 only

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