#### Title

Estimating the Parameters of a Simple Linear Regression Model Without Using Differential Calculus

#### Document Type

Article

#### Publication Date

8-2022

#### Abstract

To estimate the parameters of a simple linear regression model, students who already know calculus can minimize the total squared deviations by setting its first-order partial derivatives to zero and solving simultaneously. For students who do not know calculus, most teachers/textbooks simply state the formulas without justifying them. Students accept the formulas on faith; and for given data, they evaluate the estimates using a calculator or a statistical software. In this paper, we justify the formulas without invoking calculus. We hope the users of statistics will benefit from our proposed justifications.

#### Recommended Citation

Sarkar, J., and Rashid, M. (2022), “Estimating the Parameters of a Simple Linear Regression Model Without Using Differential Calculus," Journal of Probability and Statistical Science 20(1), 191-203, August 2022.