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Find  from the given data ∑x = 50, ∑y = 40, ∑x2 = 625, ∑y2 = 576, ∑xy = 1780, n = 6.

  1. 7.12
  2. 4.67
  3. 6.94
  4. 7.32

Answer (Detailed Solution Below)

Option 2 : 4.67
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Detailed Solution

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Concept:

bxy = slope of the regression line of x on y, and calculated as:

Calculation:

Given:

Mean  and 

Important Pointsbyx = slope of the regression line of y on x, and calculated as:

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