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. Thus, the coefficient of variation is (18 / 60) * 100% = 30%.

The Hourly Wages of a Sample of 130 System Analysts