Thebelowdata for material purchase costs (in million) and sales volume (in thousands of pcs) are known for PT. XYC Bearing Company.

Determine the y' Regression equation of the company by calculating the values of a and b (no need to make a graph) by completing the below table

Tahun	Cost material	Sales Volume	x.y	x2	y2
(x)	(y)
1	3	5
2	4	7
3	5	8
4	6	9
5	7	11
S
x bar
{x bar}2
y bar

Distribution table