The hourly wages of a sample of 130 system analysts are given below. mean = 60
Range = 20
Mode = 73
Variance = 324
Median = 74
The coefficient of variation equals
A)0.30%
B)30%
C)5.4%
D)54%

Question

Quizplus · Accepted Answer

The coefficient of variation is calculated as (standard deviation / mean) * 100%. The standard deviation is the square root of the variance, which is √324 = 18. Therefore, the coefficient of variation is (18 / 60) * 100% = 30%.

The Hourly Wages of a Sample of 130 System Analysts