1, variance: when the expected value is the same, the greater the variance, the greater the risk.
2. Standard deviation: When the expected value is the same, the greater the standard deviation, the greater the risk.
3. Coefficient of variation: coefficient of variation = standard deviation/expected value. The coefficient of variation is the degree of difference and dispersion observed from a relative perspective. The coefficient of variation is not affected by whether the expected values are the same or not.
In today's society, many people have to measure some risks in a project, otherwise, their own projects or the company's projects will suffer certain losses.
Risk measurement is to think ahead in the coming risks, which requires special caution. After thinking, certain measures need to be taken to reduce risks.