The median of the following data is x_i : 25 30 35 40 45 50 55 60 65 frequency (f_i) : 4 9 10 13 17 25 31 14 7

AP ICET 2016 Paper

Question : 147 of 200

Marks: +1, -0

The median of the following data is

$x_i$ :	25	30	35	40	45	50	55	60	65
frequency $(f_i)$ :	4	9	10	13	17	25	31	14	7

Solution:

N=Σfi=130

Here

N/2=130/2=65

Median

=x_i

of the class where

N/2

falls in the cumulative frequency column ;Here ; 65 falls in

x_i=50

Hence, median

=50

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