Calculate the mode
Marks 0-10= 6, 10-20=10
20-30
12
30-40
32
40-50
20
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1
Answer:
Modal class =30−40
So we have, l=30,f0=12,f1=32,f2=20 and h=10
⇒ Mode=l+2f1−f0f2f1−f0×h
=30+2×32−12−2032−12×10
=30+6.25
=36.25
∴ Mode =36.25
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