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.

Select the correct answer using the code given below.

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NDA (Held On: 19 Apr 2015) Maths Previous Year paper
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  1. 1 only
  2. 2 only
  3. Both 1 and 2
  4. Neither 1 nor 2

Answer (Detailed Solution Below)

Option 2 : 2 only
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NDA 01/2025: English Subject Test
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Detailed Solution

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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.

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