4.7:

Coefficient of Variation

JoVE 핵심
통계학
JoVE 비디오를 활용하시려면 도서관을 통한 기관 구독이 필요합니다.  전체 비디오를 보시려면 로그인하거나 무료 트라이얼을 시작하세요.
JoVE 핵심 통계학
Coefficient of Variation

2,866 Views

00:00 min

April 30, 2023

The coefficient of variation measures the dispersion of the data points or distribution around the mean. Using the coefficient of variation, we can compare two data series with drastically different means or different units of measurement. The coefficient of variation for a sample and a population is expressed as a percentage of the ratio of standard deviation to the mean.

The coefficient of variation is a practical statistical tool in finance. It allows investors to assess the volatility or risk and the returns associated with their investments. An investment with a low coefficient of variation has lower volatility or risk, and hence it is safer than one with a high coefficient of variation.