[{"data":1,"prerenderedAt":47},["ShallowReactive",2],{"q-sec_sr_finance-115-2-026":3},{"exam":4,"examName":5,"chapterSlug":6,"question":7,"related":22},"sec_sr_finance","證券商高級業務員資格測驗——證券投資與財務分析(試卷「財務分析」)","c10",{"id":8,"exam":4,"session":9,"qno":10,"question":11,"options":12,"answer":17,"chapter":18,"freq":19,"explanation":20,"difficulty":21},"sec_sr_finance-115-2-026","115-2",26,"若甲股票報酬率與乙股票報酬率之共變數為 0.5，則乙股票報酬率與甲股票報酬率之共變數為：",[13,14,15,16],"資料不足，無法斷定","-0.5","大於 0.5","0.5",3,"財務預測、成長與企業評價",1,"共變數的定義是兩個隨機變數各自減去期望值後乘積的期望值，乘法可以交換順序，因此共變數具有對稱性，交換兩檔股票的先後不會改變數值，仍然是0.5，故選(D)。(B) －0.5把符號顛倒，負值只在兩者報酬率反向連動時才會出現，正負號取決於實際連動方向，不會因為書寫順序而翻轉。(C) 大於0.5誤以為調換順序會放大數值。(A) 已知條件已經足夠，不需要再補任何標準差資料；要換算成相關係數時，才需要另外用兩者的標準差去除。","easy",[23,27,31,35,39,43],{"id":24,"question":25,"qno":26},"sec_sr_finance-114-3-021","假設負債的利率為 15%，稅率為 17%，則在計算融資租賃價值時應用的折現率為多少？",21,{"id":28,"question":29,"qno":30},"sec_sr_finance-114-3-022","回收期限法（Payback Period Rule）：",22,{"id":32,"question":33,"qno":34},"sec_sr_finance-114-3-024","下列何者不影響每期淨現金流量？",24,{"id":36,"question":37,"qno":38},"sec_sr_finance-114-3-043","下列何者會增加可轉換公司債的價值？",43,{"id":40,"question":41,"qno":42},"sec_sr_finance-114-3-044","一般來說，我們會用統計上的迴歸方法來估計：",44,{"id":44,"question":45,"qno":46},"sec_sr_finance-114-3-045","假設某一股票之報酬率在市場報酬率為正時，其皆為負，且市場報酬率為負時，它皆為正，則此股票的β 值(Beta)：",45,1785904146028]