Ex 13.1, 8 - Chapter 13 Class 11 Statistics

Last updated at August 2, 2026 by

Ex 13.1, 8 - Find mean deviation about median - CBSE - Ex 13.1 - Ex 13.1

part 2 - Ex 13.1, 8 - Ex 13.1 - Serial order wise - Chapter 13 Class 11 Statistics

Remove Ads

Transcript

Ex15.1, 8 Find the mean deviation about the median for the data The given observations are already in ascending order. Adding a column corresponding to cumulative frequencies of the given data, we obtain the following table. c.f = cumulative frequency āˆ‘128ā–’š‘“š‘– = 29 āˆ‘128ā–’š‘“š‘– |š‘„š‘– āˆ’M| = 148 āˆ“ Mean Deviation = (Ī£ š‘“_š‘– |š‘„_(š‘– )āˆ’ M|)/š‘“_š‘– = 148/29 = 5.1

Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh is an IIT Kanpur graduate and has been teaching for 16+ years. At Teachoo, he breaks down Maths, Science and Computer Science into simple steps so students understand concepts deeply and score with confidence.

Many students prefer Teachoo Black for a smooth, ad-free learning experience.