Question

For the womandata ala c agrans of the data D e diagram of Choose the righ 1 گلی ga گلی / y hand compute the correlation coeficient The concentround is op 14 Drewwer there is n o been and Because the relea s e d the Round is the deal was needed] / / Cicl es for the creation coeficient wheel the cave dont 1 / Plane 10 -- 3 20

Answer 1

a) option a)

b)

x	y	(x-x̅)²	(y-ȳ)²	(x-x̅)(y-ȳ)
2	4	9.0000	54.7600	22.2000
4	8	1.0000	11.5600	3.4000
6	11	1.0000	0.1600	-0.4000
6	14	1.0000	6.7600	2.6000
7	20	4.0000	73.9600	17.2000

	ΣX	ΣY	Σ(x-x̅)²	Σ(y-ȳ)²	Σ(x-x̅)(y-ȳ)
total sum	25.00	57.00	16.00	147.20	45.00
mean	5.00	11.40	SSxx	SSyy	SSxy

correlation coefficient ,    r = Sxy/√(Sx.Sy) =   0.927

c)

answer for blanks:

0.927 , 0.927 , is greater, 0.878, there is enough evidence that linear relation exists