Qus.7-Find Median OR Mode
Marks obtal 0-10 10-20 20-30 30-40
40-50 50-60
60-70
Frequency
05 ,04,03,02,02,01,01
Answers
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Answer:
c.f.= 05, 09, 12, 14, 16, 17, 18
Xi= 05,15,25,35,45,55
N/2= 18/2= 09
L= 10
f= 04
h=10
median= 10+ ((15-5)÷4)×10= 35
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