The table is missing in the question. The table is attached below.
Solution :
Let X = appraised value
Y = area (square feet)
The regression line is given by :







The regression line is :

To estimate the error variance, we have:
Error variance, 


Answer: B 1/m
Step-by-step explanation:
Answer:
it is 1/4
Step-by-step explanation:
20/60=10/30=1/3
Area of square = (length)²
OR

INCREASE IN %: [(40280-1591)/1591]X 100% = 2,432&
For your info the increase between 2 amounts A₁ & A₂ =(A₁-A₂)/A₁