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AP ICET 2017 Shift 1 Paper

Question : 144 of 200

Marks: +1, -0

x	1	2	3	.....	10
f	1	2	3	......	10

xi	fi	fixi	xi−x=xi=7	(xi−x)2	fi(xi−x)2
1	1	1	−6	36	36
2	2	4	−5	25	50
3	3	9	−4	16	48
4	4	16	−3	9	36
5	5	25	−2	4	20
6	6	36	−1	1	6
7	7	49	0	0	0
8	8	64	1	1	8
9	9	81	2	4	36
10	10	100	3	9	90
	N=Σfi=55	Σfixi=385			Σfi(xi−x)2=330

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