Problema Solution
In some reports, the mean and coefficient of variation are given. For instance, in Statistical Abstract of the United States, 116th Edition, one report gives the average number of physician visits by males per year. The average reported is 3.4, and the reported coefficient of variation is 2.7%. Use this information to determine the standard deviation of the annual number of visits to physicians made by males
Answer provided by our tutors
If x`and s represent the sample mean and sample standard deviation, respectively, then the sample coefficient of variation CV is defined to be:
CV = (s/x`)*100
CV = 2.7%
x`= 3.4
(s/3.4)*100 = 2.7
by solving we find:
s = 0.0918
click here to see the step by step solution of the equation:
the standard deviation of the annual number of visits to physicians made by males is 0.0918.