STATISTIK (Tugas Individu VI)

Jarak	Emisi		No	X	Y	X2	Y2	X.Y
11	729		1	11	729	121	531441	8019
38	590		2	38	590	1444	348108	22420
48	608		3	48	608	2304	369664	29184
52	682		4	52	682	2704	465124	35464
63	752		5	63	752	3969	565504	47376
67	725		6	67	725	4489	525625	48575
75	834		7	75	834	5625	695556	62550
84	752		8	84	752	7056	565504	63168
89	845		9	89	845	7921	714025	75205
11	904		10	11	904	121	817216	9944
			Jml	538	7421	35754	5597759	401905

Jawab: 

r =                        n ∑ x1 y1 – ( ∑ x1 ∑ y1 )

            √ ( n ∑ x1 ² - ( ∑ x1 )² ) x ( n ∑ y1 ² - ( ∑ y1 )²

           

  =                          ( 10 x 401905 ) – (538 x 7421 )

            √ ( 10 x 35754 – (538 )² ) x ( 10 x 401905  - (7421 )² )

  =                             4019050 – 3992498

            √ (357540 – 289444 ) x ( 4019050 – 55071241 )

  =                    26552

√ 68096 x 51052191

  =        0,0763

r² =      ( 0,0763 )² = 5,82