Fitting Linear Models to Data · Exercise 41

Consider this scenario: The profit of a company decreased steadily over a ten-year span. The following ordered pairs show dollars and the number of units sold in hundreds and the profit in thousands of dollars over the ten-year span (number of units sold, profit) for specific recorded years:

$(\text{46},\text{250}),(\text{48},\text{225}),(\text{50},\text{205}),(\text{52},\text{180}),(\text{54},\text{165}).$

Use linear regression to determine a function y, where the profit in thousands of dollars depends on the number of units sold in hundreds.

OpenStax, Precalculus 2e · §2.4 Fitting Linear Models to Data · Exercise 41