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Old Exam Papers June 2012 (Set 2)

Old Exam Papers June 2012 (Set 2)

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lap;h vkSj {kfriwjd foHkze esa vUrj crkb;s rFkk foHkze dk eki<br />

crkb;sA<br />

Or<br />

Calculate mean from the following data :<br />

Class Frequency<br />

0-10 7<br />

10-20 14<br />

20-30 13<br />

30-40 12<br />

40-50 20<br />

50-60 11<br />

60-70 15<br />

70-80 8<br />

fuEufyf[kr leadksa ls ek/; Kkr dhft;s %<br />

oxZ vko`fÙk<br />

0-10 7<br />

10-20 14<br />

200 2 EEC-03<br />

10. What is simple Random Sample ? Discuss its merits and<br />

demerits.<br />

ljy nSo fun'kZu D;k gS \ blds xq.k vkSj nks"kksa dh ppkZ<br />

dhft;sA<br />

EEC-03 9 200

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