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here, n / 2 = 20 / 2 = 10
Also, l = 12; cf = 5; f = 9
using formula;
median = l+{(n/2 - cf)}/f × h
m = 12 + ( 10 - 5 ) / 9 × 6
m = 12 + 5/9 × 6
m = 12 + 10/3
m = (36 + 10 ) / 3
m = 46 / 3
Also, l = 12; cf = 5; f = 9
using formula;
median = l+{(n/2 - cf)}/f × h
m = 12 + ( 10 - 5 ) / 9 × 6
m = 12 + 5/9 × 6
m = 12 + 10/3
m = (36 + 10 ) / 3
m = 46 / 3
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