Indu Dhiman posted an Question
May 22, 2021 • 21:44 pm 30 points
  • UGC NET
  • Economics

Question: 30/50 unit solved papers (1-10) - economics the mean and s.d. of a data set are 10 and 3. if every observation is increased by 2 then the coefficient

Question: 30/50 Unit Solved Papers (1-10) - Economics The mean and S.D. of a data set are 10 and 3. If every observation is increased by 2 then the coefficient of variation will be: 20% 25% 30% 35% View Solution 30%

1 Answer(s) Answer Now
  • 0 Likes
  • 3 Comments
  • 0 Shares
  • Shashikant

    yes it must be 25% since variance and consequently sd is independent of change of scale ( but not of origin) sd will remain same

  • Anushka

    I think it's 25% only. as mean value rises by 2 and sd remains same ie 3. so 3/12×100 is 25 %.

whatsapp-btn

Do You Want Better RANK in Your Exam?

Start Your Preparations with Eduncle’s FREE Study Material

  • Updated Syllabus, Paper Pattern & Full Exam Details
  • Sample Theory of Most Important Topic
  • Model Test Paper with Detailed Solutions
  • Last 5 Years Question Papers & Answers