有关统计学的英语题As given on the Morningstar website,the mean return for Fidelity Leveraged Company Stock is 17.98 percent with a standard deviation of 10.02 percent,while the mean return for Baron Opportunity Retail Stock is 16.43 percent

有关统计学的英语题As given on the Morningstar website,the mean return for Fidelity Leveraged Company Stock is 17.98 percent with a standard deviation of 10.02 percent,while the mean return for Baron Opportunity Retail Stock is 16.43 percent
有关统计学的英语题
As given on the Morningstar website,the mean return for Fidelity Leveraged Company Stock is 17.98 percent with a standard deviation of 10.02 percent,while the mean return for Baron Opportunity Retail Stock is 16.43 percent with a standard deviation of 12.23 percent.Which stock do you buy?(Which is riskier than the other one?)
请翻译一下题目所讲的内容,并用英语回答该问题,

有关统计学的英语题As given on the Morningstar website,the mean return for Fidelity Leveraged Company Stock is 17.98 percent with a standard deviation of 10.02 percent,while the mean return for Baron Opportunity Retail Stock is 16.43 percent
像morningstar 网站上写的那样,FL公司股票的平均回报是17.98%,标准差10.02%.BOR公司股票的平均回报16.43%,标准差12.23%.你会买那个股票?（哪个更加有风险?）
解法的话应该是用变异系数（coefficient of variation）,也就是CV
CV = 标准差/平均值 *100% （stdev / mean）
剩下的应该就会做了吧?
有不明白的继续追问我.