Content
A car manufacturer collects data on six of its petrol‑engine models, recording engine power x (in horsepower) and the corresponding average CO2 emissons y (in g/km):
Use your graphic display calculator to find the equation of the regression line of y on x.
To earn a crown, get your answer ready before you reveal the options!
The engine power for the new prototype will be x=260hp.
Use your regression equation to estimate the CO2 emissions of the prototype.
The Pearson product–moment correlation coefficient is r=0.975, to three significant figures.
Explain why it is valid to use this regression model to make that estimate.
Ask Plex AI about this problem
Get hints, ask questions, and work through this problem step by step