1. Chapter 14 Class 9 Statistics
  2. Serial order wise
  3. Examples

Example 10

Last updated at Dec. 8, 2016 by

Example 10 - People were asked about the time in a week - Mean

  1. Chapter 14 Class 9 Statistics
  2. Serial order wise
    3. Examples
    Concept wise →
Ask Download

Transcript

Example 10 People were asked about the time in a week they spend in doing social work in their community. They said 10, 7, 13, 20 and 15 hours, respectively. Find the mean (or average) time in a week devoted by them for social work Mean time in a week devoted = (๐‘†๐‘ข๐‘š ๐‘œ๐‘“ ๐‘Ž๐‘™๐‘™ ๐‘กโ„Ž๐‘’ ๐‘œ๐‘๐‘ ๐‘’๐‘Ÿ๐‘ฃ๐‘Ž๐‘ก๐‘–๐‘œ๐‘›๐‘ )/(๐‘‡๐‘œ๐‘ก๐‘Ž๐‘™ ๐‘›๐‘ข๐‘š๐‘๐‘’๐‘Ÿ ๐‘œ๐‘“ ๐‘œ๐‘๐‘ ๐‘’๐‘Ÿ๐‘ฃ๐‘Ž๐‘ก๐‘–๐‘œ๐‘›๐‘ ) = (10 + 7 + 13 + 20 + 15)/5 = 65/5 = 13

Chapter 14 Class 9 Statistics
Serial order wise

About the Author

CA Maninder Singh's photo - Expert in Practical Accounts, Taxation and Efiling
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 8 years. He provides courses for Practical Accounts, Taxation and Efiling at teachoo.com .
Jail