Consider the frequency distribution C.I. 75 - 175 175 - 275 275 - 375 375 - 475 475 - 575 575 - 675 675 - 775 f_i 3 2 1 0 1 2 3 If the variance of this distribution is 60000, then the coefficient of variation of the distribution is

AP EAMCET Engineering 2018 Apr 24 Shift 1 Paper

Section: Mathematics

Question : 36 of 160

Marks: +1, -0

Consider the frequency distribution

C.I.	75 - 175	175 - 275	275 - 375	375 - 475	475 - 575	575 - 675	675 - 775
fi	3	2	1	0	1	2	3

If the variance of this distribution is 60000, then the coefficient of variation of the distribution is

CI	fi	Mid-Value xi	fixi
75-175	3	125	375
75-175	2	225	450
275-375	1	325	325
375-475	0	425	0
475-575	1	525	525
575-675	2	625	1250
675-775	4	725	2175
	∑fi=12		∑fixi=5100

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