Answer:
rom the relation for linear regression formula, Y = b·X + a, we have ;
For car 1
ΣXY = 102780
(ΣX)² = 36
ΣX = 6
ΣY = 52390
ΣX² = 14
N = 3
b = -1000
a = 19463
Y = -1000×X + 19463
For Car 2
ΣXY = 102539.8
(ΣX)² = 36
ΣX = 6
ΣY = 52346.6
ΣX² = 14
N = 3 .
b = -1076.7
a = 19602
Y = -1076.7×X + 19602
Step-by-step explanation:
part B ^
Answer:
30%
Step-by-step explanation
13 is a 30% increase of 10.
Answer:
21
Step-by-step explanation:
Answer:
Area of the circle = 
Step-by-step explanation:
Radius of the circle= 
Area of the circle= 
As,
Area of the circle is:
The Area of the circle is :
