A study of an adaptive replication framework for orchestrated composite web services

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Table 2 The load prediction calculation of the target academic server

	x	y	xy	x²	y²	$x - \bar{x}$	$y - \bar{y}$	$(x - \bar{x}) (y - \bar{y})$	${(x - \bar{x})}^{2}$
1	62	80	4960	3844	6400	6.714286	20.86	140.0408163	45.08163265
2	50	45	2250	2500	2025	-5.28571	-14.14	74.75510204	27.93877551
3	72	52	3744	5184	2704	16.71429	-7.143	-119.3877551	279.3673469
4	39	67	2613	1521	4489	-16.2857	7.857	-127.9591837	265.2244898
5	69	55	3795	4761	3025	13.71429	-4.143	-56.81632653	188.0816327
6	50	85	4250	2500	7225	-5.28571	25.86	-136.6734694	27.93877551
7	45	30	1350	2025	900	-10.2857	-29.14	299.755102	105.7959184
Total	387	414	22962	22335	26768			73.71428571	939.4285714