Residual Analysis Practice Worksheet
Linear Regression & Residual Practice
Problem 1 of 2
Name:
Date:
S(7)(E) The student is expected to describe the relationship between influential points and lines of best fit using dynamic graphing technology.
1. For compact SUVs between the ages of 1 and 6 years with odometers between 20,000 and 85,000 miles, there is approximately a linear relationship between odometer mileage and selling price. The relationship can be represented by \(y = 32.40 - 0.16x\), where \(y\) represents selling price (in thousands of dollars) and \(x\) represents odometer mileage (in thousands of miles). Marcus finds an SUV with an odometer reading of 42.5 thousand miles that is listed for 24.8 thousand dollars. What is the residual for this vehicle's selling price?
A. 25.600
B. -0.800
C. 0.800
D. -25.600
Workspace / Show Your Work: Show all steps & formulas clearly
Linear Regression & Residual Practice
Problem 2 of 2
Name:
Date:
S(7)(E) The student is expected to describe the relationship between influential points and lines of best fit using dynamic graphing technology.
2. For harbor seal pups between the ages of 2 weeks and 14 weeks, there is approximately a linear relationship between body mass and age. The relationship can be represented by \(y = 11.25 + 1.40x\), where \(y\) represents body mass (in kilograms) and \(x\) represents age (in weeks). A rescued pup named Finley is 7.5 weeks old and has an actual measured weight of 23.10 kilograms. What is Finley's residual?
A. 21.750
B. -1.350
C. 1.350
D. -21.750
Workspace / Show Your Work: Show all steps & formulas clearly
