Question

In simple linear regression, the numbers of unknown constants are:

• A. One
• B. Two
• C. Three
• D. Four

Answer 1

The correct option is B Two

$\Rightarrow$ In simple linear regression, the number of unknown constants are $:Two$

$\Rightarrow$ The line of regression of $y$ on $x$ is given by $y=a+bx$ where $a$ and $b$ are unknown constants known as intercept and slope of the equation. This is used to predict the unknown value of variable $y$ when value of variable $x$ is known.