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UPSC CDS Math Statistics Questions

Question : 1 of 63

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Class interval	Mid-point	Frequency Series-I	m.f	Frequency Series-I	m.f
10-20	15	20	300	4	60
20-30	25	15	375	8	200
30-40	35	10	350	4	140
40-50	45	29	1305	58	2610
50-60	55	26	1430	26	1430
Total	100	3760	100	4440

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