recalculate variance

anterolateral 英[æntərəʊ'leɪtərəl] 美[æntərəʊ'leɪtərəl] adj.在前面偏一边的 aventurine 英[ə'ventʃərɪn] 美[ə'vɛntʃərɪn] corkboard 英['kɔːkbɔːd] 美['kɔːkˌboʊrd] n.(绝热)软木板,软木公告板 zinckenite 英['zɪŋkənaɪt] 美['zɪŋkəˌnaɪt] n.(=zinkenite)辉锑铅矿 use-corn 玉米 mugwort weevil 艾草象甲 thyme gelechiid 百里香麦蛾 orange click beetle 橙叩头虫 mandarin fish foot-and-mouth disease 鳜鱼口蹄疫 fine-wool sheep american foulbrood 细毛羊美洲幼虫腐臭病 lily bud rot 百合花芽腐烂 defensive deposit 防御性存款 forecast holding period 预测持有期 healthcare quantitative fund 医疗量化基金 historical market 历史市场 guarantee market 担保市场 property guarantee business 财产担保业务 first-time startup 首次创业主体 accumulate client 积累客户 target-risk advisory account 目标风险咨询账户 hull business scheme 船舶业务方案 budgeted voucher 预算凭证 financial manager 财务经理 management officer 管理专员 payroll interim review 工资中期审阅