Which of the following statements is/are correct in respect of regression coefficients?

1. It measures the degree of linear relationship between two variables

2. It gives the value by which one variable changes for a unit change in the other variable.
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This question was previously asked in

NDA (Held On: 19 Apr 2015) Maths Previous Year paper

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Answer 1

Concept:

Regression variable tells about the degree of dependence of one variable on the other

Calculation:

When the regression line is linear: y = ax + b

This tells about dependency of variables and not the linear relationship

So, statement (1) is not correct but (2) is correct.

Hence, option (2) is correct.