Question

If one regression coefficient is unity, then the other will be

• A. Greater than unity
• B. Greater than or equal to unity
• C. Less than or equal to unity
• D. None of the above

Answer 1

The correct option is C

Less than or equal to unity

Explanation for the correct option.

• As per the definition of the regression coefficient, when there is a known variable then it can be used to determine the value of an unknown variable.
• As we know if one coefficient of the regression is greater than one, then the other will be numerically less than it.
• As given that one of the regression coefficients is $1$ then the other one can either be equal to or less than unity.

Hence, the correct option is (C).