Find the median of the following distribution. Class interval 40-45 45-50 50-55 55-60 60-65 65-70 70-75 Frequency 2 3 8 6 6 3 2
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Answer:
N=30 and 2N=230=15
∴ Median class =55−60
l=55,c.f=13,f=6 and h=5
Median=l+f2N−c.f×h
=55+615−13×5
=55+1.66
=56.66
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