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Find the median of the following data...

Find the median of the following data

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To find the median , we prepare the following table :

Median = `L + (((n)/(2) - F))/(f) xx C`
Here , n = `35 implies (n)/(2) = (35)/(2) = 17.5`
This value appears in the class 20-30.
L = Lower boundary of median class = (20 - 30) = 20
F = 13 , f = 5 and C = 10 (class length)
`therefore` Median = `20 + (((35)/(2) - 13))/(5) xx 10 = 20 + (9)/(2 xx 5) xx 10 = 29.`
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