VEi A statistics student is studying if there is a relationship between the price of a used car and the number of miles it has been driven. She collects data for 20 cars of the same model with different mileage, and determines each car's price using a used car website. The analysis is given in the computer output. Using the computer output, what is the equation of the least-squares regression line? O 9 = -0.181 + 24157.2x O ý = 24157.2-0.181x O 9 = 2164.1 + 0.024x Poy =0.024 + 2164.1x Predictor Coef SE Coef t-ratio Constant 24157.2 2164.1 2.965 0.046 Mileage S = 3860.7 R-Sq = 68.0% R-Sq(Adj) = 67.5% -0.181 0.024 5.377 0.000

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Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.