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 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,