Least square regression line always passes through ____________________?
Correct answer: B. (X,Y)
- A. (x,y)
- B. (X,Y)
- C. (X,Z)
- D. x/y
Explanation
Both least-squares regression lines pass through the point formed by the means of the two variables, written as (X̄, Ȳ). The notation (X,Y) is evidently being used for these mean values.
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Practise Correlation and Regression
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