Least Squares regression was calculated for data comparing the age of a truck in years and the price of the truck. This was the result:

y=a+bx
a= 9012.34
b= -91.56
r^2=.882469176468
= -0.9393983055
What is the predicted price for a truck that is 4 years old?
$8,646.10
O $35,957.80
О $98.44
O $8,920.70

1 answer

To calculate the predicted price for a truck that is 4 years old using the least squares regression equation y = a + bx, where a = 9012.34, b = -91.56, you would plug in x = 4 into the equation:

y = 9012.34 + (-91.56)(4)
y = 9012.34 - 366.24
y = 8646.10

Therefore, the predicted price for a truck that is 4 years old is $8,646.10.