Check sibling questions

Example 10 - Chapter 14 Class 9 Statistics (Term 1)

Last updated at May 29, 2018 by

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

This video is only available for Teachoo black users

Subscribe Now

Solve all your doubts with Teachoo Black (new monthly pack available now!)

Join Teachoo Black

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 = (π‘†π‘’π‘š π‘œπ‘“ π‘Žπ‘™π‘™ π‘‘β„Žπ‘’ π‘œπ‘π‘ π‘’π‘Ÿπ‘£π‘Žπ‘‘π‘–π‘œπ‘›π‘ )/(π‘‡π‘œπ‘‘π‘Žπ‘™ π‘›π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π‘œπ‘π‘ π‘’π‘Ÿπ‘£π‘Žπ‘‘π‘–π‘œπ‘›π‘ ) = (10 + 7 + 13 + 20 + 15)/5 = 65/5 = 13

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 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.