Question:The mean and standard deviation of 200items are found to be 60 and 20respectively. If at the time of calculations,two items were wrongly taken as 3 and 67instead of 13 and 17, find the correctmean and standard deviation. What is thecorrect coefficient of variation ?

Answered: Image /qna-images/answer/d644adc7-92b3-4965-aaa9-984025a01b30.jpg

Answered: The mean and standard deviation of 200…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The mean and standard deviation of 200 items are found to be 60 and 20 respectively. If at the time of calculations, two items were wrongly taken as 3 and 67 instead of 13 and 17, find the correct mean and standard deviation. What is the correct coefficient of variation ?