Linear Regression and Prediction

Linear Regression & Prediction

Getting The Equation

• The table shown here gives the number of miles on a car over the life of the car. Use the linear regression feature on your calculator to write an equation that can be used to predict the number of miles on a car based on the age of the car.
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Getting The Equation - Answer

• As you can see from the video we get the equation:
• y = 10,390.3x + 11,683.2
• Get Eq (video/mp4)

Using the Equation (Interpolation)

• Using your regression equation predict the number of miles on the car when it is 5 years old.
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Using the Equation (Interpolation)- Ans

• Use Eq Interpolation (video/mp4)
• As you can see from the video we get
• Approximately 63,634.6 miles

Using the Equation (Extrapolation)

• Using your regression equation predict the number of miles on the car when it is 11 years old.
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Using the Equation (Extrapolation)-Ans

• Use Eq Extrapolation (video/mp4)
• As you can see from the video we get
• Approximately 125,976.4 miles

Using the Equation (With Solving)

• Using your regression equation predict the age of the car when it has 135,000 miles on it.
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Using the Equation (With Solving)-Ans

• As you can see from the video we get
• Approximately 11.87 years