  Math Central - mathcentral.uregina.ca  Quandaries & Queries    Q & Q    Topic: coefficient of variation   start over

5 items are filed under this topic.    Page1/1            Coefficient of variation 2011-04-14 From Braden:When determining coefficient of variation (CV) or %CV is it possible to calculate %CV for two variables? For instance can %CV be used to determine the precision of 5 data points on a graph using the X and Y coordinates? or does %CV need to be determined for each variable separately?Answered by Robert Dawson.     Coefficient of variation 2008-12-17 From JR:I have read your reponses regarding the coeffcient of variation (CV) and find them very useful. I still have a question about interpreting the CV. Let's that the CV of sample #1 is 3% and that of sample #2 is 12%. Can I report that Sample #2 is 4 times more variable than sample #1? Thanks in advance!Answered by Robert Dawson.     The coefficient of variation 2006-05-20 From Glenn:What is the correct formula for coefficient of variation for a binomial distribution?Answered by Penny Nom.     Coefficient of variation 2005-10-19 From Jan:I am currently teaching the coefficient of variation and am wondering if there are some guidelines as to the interpretation of this statistic. I understand that it measures the variation in a variable relative to the mean - but what is the cut off for "too much" variation expressed in this way??? Answered by Andrei Volodin and Penny Nom.     Ciefficient of variation 2001-09-23 From Carmen:I have a question from my OAC finite class. I've come across a problem with the coefficient of variation. I have taught my students that there are no units for coefficient of variation and it can be expressed as a percent. So, for example, a set of data with mean of 5 and standard deviation of 100 would have a CV of 5%. But what happens in this situation: the mean is 4meters and the standard deviation is 0.7mm. Is the CV 1.75% or 0.00175% or 0.0175%? I've had some students change leave the units as is, change them both to mm or change them both to meters...so which is it and why? Answered by Penny Nom.      Page1/1    Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.    about math central :: site map :: links :: notre site français