Last updated at Sept. 6, 2021 by Teachoo
Transcript
Example 14 - Chapter 15 Class 11 Statistics - NCERT Solution Coefficient of variation of two distributions are 60 and 70, and their standard deviations are 21 and 16, respectively. What are their arithmetic means. For first distribution Coefficient of variation(CV) = 60 Standard deviation = 21 We know that CV = (๐๐ก๐๐๐๐๐๐ ๐๐๐ฃ๐๐๐ก๐๐๐)/๐๐๐๐ ร 100 60 = 21/๐๐๐๐ ร 100 Mean = 21/60 ร 100 Mean = 35 For second distribution Coefficient of variation(CV) = 70 Standard deviation = 16 We know that CV = (๐๐ก๐๐๐๐๐๐ ๐๐๐ฃ๐๐๐ก๐๐๐)/๐๐๐๐ ร 100 70 = 16/๐๐๐๐ ร 100 Mean = 16/70 ร 100 Mean = 22.85
Examples
Example 2
Example 3 Important
Example 4
Example 5 Important
Example 6 (Normal Method)
Example 6 (Shortcut Method) Important
Example 7 Important
Example 8
Example 9 Important
Example 10 Important
Example 11
Example 12 Important
Example 13 Deleted for CBSE Board 2022 Exams
Example 14 Important You are here
Example 15 Important Deleted for CBSE Board 2022 Exams
Example 16
Example 17 Important
Example 18
Example 19 Important
Examples
About the Author