Example 2 - Chapter 13 Class 11 Statistics

Last updated at Dec. 16, 2024 by

Slide2.JPG

Slide3.JPG

Go Ad-free

Transcript

Example 2 Find the mean deviation about the mean for the following data : 12, 3, 18, 17, 4, 9, 17, 19, 20, 15, 8, 17, 2, 3, 16, 11, 3, 1, 0, 5 Mean of the given data = = 12 + 3 + 18 + 17 + 4 + 9 + 17 + 19 + 20 + 15 + 8 + 17 + 2 + 3 + 16 + 11 + 3 + 1 + 0 + 5 20 = 200 20 = 10 Mean deviation about mean = 8 M.D.( ) = 12 10 + 3 10 + 18 10 + 17 10 + 4 10 + 9 10 + 17 10 + 19 10 + 20 10 + 15 10 + 8 10 + 17 10 + 2 10 + 3 10 + 16 10 + 11 10 + 3 10 + 1 10 + 0 10 + 16 10 20 M.D.( ) = 2 + 7 + 8 + 7 + 6 + 1 + 7 + 9 + 10 + 5 + 2 + 7 + 8 + 7 + 6 + 1 + 7 + 9 + 10 + 6 20 = 2 + 7 + 8 + 7 + 6 + 1 + 7 + 9 + 10 + 5 + 2 + 7 + 8 + 7 + 6 + 1 + 7 + 9 + 10 + 6 20 = 124 20 = 6.2

Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo