Class 10 · Mathematics (Standard) · Unit 13: Statistics

Median (Grouped Data)

Lesson 2 of 5

The median class is the class where the cumulative frequency first reaches or exceeds

n/2

. Then median

= l + \dfrac{n/2 - cf}{f}\cdot h

, where

l

= lower limit of median class,

cf

= cumulative frequency before median class,

f

= frequency of median class,

h

= class width.

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