Using advertised prices for used Ford Escorts a linear model for the relationship between a car's age and its price is found.The regression has an
= 87.7%.Write a sentence summarizing what
Says about this regression.
A)The age of the car explains 87.7% of the variation in price.
B)The price of the car explains 87.7% of the variation in age.
C)The age of the car explains 12.3% of the variation in price.
D)The age of the car explains 9.36% of the variation in price.
E)The price of the car explains 12.3% of the variation in age.

Question

Using advertised prices for used Ford Escorts a linear model for the relationship between a car's age and its price is found.The regression has an 
= 87.7%.Write a sentence summarizing what 
Says about this regression.
A)The age of the car explains 87.7% of the variation in price. 
B)The price of the car explains 87.7% of the variation in age. 
C)The age of the car explains 12.3% of the variation in price. 
D)The age of the car explains 9.36% of the variation in price. 
E)The price of the car explains 12.3% of the variation in age.

Quizplus · Accepted Answer

The coefficient of determination (R-squared) measures the proportion of variation in the dependent variable (price) that is explained by the independent variable (age). In this case, R-squared is 0.877, which means that 87.7% of the variation in price can be explained by the age of the car.

Using Advertised Prices for Used Ford Escorts a Linear Model