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數學與統計 大學

大二統計學 求「39的C小題」&「40題」,萬分感謝!

是策分析中應用廣泛。先驗機率經常是由決策者主觀估計,在取得樣本 再選出最佳決策。 一件互斥,它們的聯集為整個樣本空間。因此,貝氏定理一定適用於計算事件及餘事件的 題 o 地方, 作。 03 方法 39.兩事件 A 和A的先驗機率為 PA1)=0.40 和 P(A)=0.60,且已知 P(An A2)=0。 - 假設 PUB|A) = 0.20 和 P(B|A) = 0.05。 a. 事件 A 和 A. 是否互斥?請解釋之。(And) b. št. P(A n B) B P(A2 n B) c. 計算 PCB)。 d. 利用貝氏定理計算 P(A|B) P(A|B)。 40. 事件 A、A和 A; 的先驗機率分別為 P(A) = 0.20、P(A2) = 0.50 及 P(As) = 0.30。 事件B的條件機率給定 A1、A和 A: 分別為 P(B|A) = 0.50、P(B|A) = 0.40 及 P(B A3) = 0.30 - a. 計算 PCBA)、P( BA)和PCBnAs)。 b. 利用貝氏定理式(4.19)計算事後機率 P(A|B) c. 利用表格求解法計算 P(A|B)、P(A|B)及P(A|B)。 - - 應用 41. 顧問公司投標 顧問公司要投標大型研究計畫。公司的管理當局一開始覺得應有 50%的得標機會。但是投標人員在提出標單後,被要求提供額外的補充資料。根 據過去經驗顯示,成功得標案有75%、未得標案則有40%會在提出標單後,被要 求提供額外的補充資料。 a. 得標的先驗機率是多少(也就是說,在被要求提供額外的補充資料前)? b. 已知最後會得標,被要求提供額外的補充資料的條件機率是多少? c. 已知被要求提供額外的補充資料,得標的事後機率是多少? 42. 信用卡延遲付款 某銀行評估其信用卡政策以確定是否要收回某些持卡人的信用 卡,從過去的資料顯示有5%的持卡人不付款,因此管理者將不付款的先驗機率指 該銀行進一步發現有0.20 的持卡人延遲付款至少1個月以上但並非不 為005。

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數學與統計 大學

第17合成函數前面有函數怎麼做?

8:20 ul 4G o moodle.chu.edu.tw 2.4節(p.154):7、31 1-22 Differentiate. 7. y = sec 0 tan 31. (a) Find an equation of the tangent line to the cury y = 2x sin x at the point (11/2, ). (b) Illustrate part (a) by graphing the curve and the line on the same screen. 2.5節(p.162):17、31 7-48 Find the derivative of the function. 17. h(v) = vž1 + y2 31. y = 1 + sinx COS 2.6節(p.170):31 (本題除了算出切線方程式 要用電腦畫出隱函數曲線與切線) 31. x² + y2 = (2x² + 2y? – x)?, (0,5) (cardioid) YA D 2.9節(p.197) :31、35 31-36 Use a linear approximation (or differentials) to est the given number. 31. (1.999) 35. tan 2° +

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商業與管理 大學

詢問成本與管理會計 第18題的題目是什麼意思 並且是怎麼算出來的

D. Materials, 40%; labor, 40%; overhead cost, 60%. E. Materials, 40%; labor, 40%; overhead cost, 100%. (18) Agora Company uses a process-cost system for its single product. Material A is added at the beginning of the process; in contrast, material B is added when the units are 75% complete. The firm's ending work-in-process inventory consists of 6,000 units that are 80% complete. Which of the following correctly expresses the equivalent units of production with respect to materials A and B in the ending work-in-process inventory? A. A, 4,800; B, 0. B. A, 4,800; B, 4,800. C. A, 6,000; B, 0. D. A, 6,000; B, 4,800. E. A, 6,000; B, 6,000. 19. Willingham uses a process-costing system for its single product, which is manufactured from Material X and Material Y. X and Y are introduced to the product as follows: Material X: Added at the beginning of manufacturing Material Y: Added at the 75% stage of completion

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商業與管理 大學

詢問成本與管理會計 第18題的題目是什麼意思 並且是怎麼算出來的

D. Materials, 40%; labor, 40%; overhead cost, 60%. E. Materials, 40%; labor, 40%; overhead cost, 100%. 18) Agora Company uses a process-cost system for its single product. Material A is added at the beginning of the process; in contrast, material B is added when the units are 75% complete. The firm's ending work-in-process inventory consists of 6,000 units that are 80% complete. Which of the following correctly expresses the equivalent units of production with respect to materials A and B in the ending work-in-process inventory? A. A, 4,800; B, 0. B. A, 4,800; B, 4,800. C. A, 6,000; B, 0. D. A, 6,000; B, 4,800. E. A, 6,000; B, 6,000. 19. Willingham uses a process-costing system for its single product, which is manufactured from Material X and Material Y. X and Y are introduced to the product as follows: Material X: Added at the beginning of manufacturing Material Y: Added at the 75% stage of completion

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數學與統計 大學

救救數學白痴😢 In a bag of 64 “holiday season” M&Ms, each M&M is equally likely to be red or green, independent of any other M&M in the bag. (a... 繼續閱讀

3.3.13 In a bag of 64 "holiday season" M&Ms, each M&M is equally likely to be red or green, independent of any other M&M in the bag. (a) If you randomly grab four M&Ms, what is the probability P[El that you grab an equal number of red and green M&Ms? (b) What is the PMF of G, the number of green M&Ms in the bag?

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