（大ㄧ的統計學） QAQ請問這兩題的excel要怎麼做出來？求做出來的步驟（方法）🙏🙏🙏🙏🙏急需要🙏🙏🙏

【題6】前程出版社今年每位業務員的平均業績為4千萬元,標準差 300 萬元, 若該公司一共有 100 位業務員,請用經驗法則估計前程出版社今年有多少業務員的業 績介於3千4百萬到4千9百萬之間?(提示:請利用經驗法則) (Ch4 機率分配) 【題7】教育部為了瞭解目前在國內大學任教的教師工作壓力為何?依照壓力指標,10-15 分 屬於無壓力、16-20 分屬於低壓力、21-30 屬於中壓力、31-40 屬於高壓力、41 分以上屬於超 高壓力。下表是回收後的問卷所整理好的次數分配表,屬於高壓力或超高壓力的機率是多少? 總分群組 人數 相對次數 |10-15 16 | 16-20 |21-25 26-30 |31-35 | 36-40 |41-45 46-50 總和 6 32 30 78 80 238 120 P= 次數分配表與機率的關係: 5

求解 畫出C₅H₁₂的所有結構異構物 排列下列化合物的鍵角大小，並解釋為什麼？(a)H₂O (b)CH₄ (c)NH₃ 謝謝

請問這題怎麼算？

7/13 簡答題(10.0分) Price (dollars per movie) Quantity demanded, weekend (movies per week) 0- Quantity demanded, weekday (movies per week 18: 15- 100+ 0- 122 200 0- 9- 300e 100e 2002 62 400e 3- 500e 300e Roxie's Movie Theater has a monopoly and discovers that at $12 a movie, no one is buying movie tickets during weekdays. Roxie's conducts a survey and the table above reveals the results of the survey. Roxie decides to price discriminate between weekend and weekday moviegoers. The marginal cost of a showing a movie is $6. Roxie's charges $_ on weekdays and $ on weekends.

請問A2的式子算出來為什麽沒有c,是怎麼算的

- 1513 Let D be the region bounded by the curve y=-x2 and the line y = mx +(m-1) · where m<0.Find a real number c such the line L=x=c divides the region D into two parts with equal areas. 【台大(A) 解:1. (x200). ( 1000) 1-m x x NH --- X=C 'y=mx+(m-1) 2. 求交點 ly=-x² = x² + mx +(m-1)=0 = (x+1)(x +m-1) = 0 (y=mx+(m-1) Cola's stogo Tubo + brev ..x=-1, 1-m 3. A = L, -x? – mx-(m–1)dx c3 2 c? 1 + +(-- +-)m-(c+1)m + c 3. 3 2 2 + 1 A2 - x“ - mx-(m-1)dx A2 = |-*-x? -\m-8)1 – m)2 – (8-9m 9m)) 01-

11題I和II為什麼不對

11. Consider the following statements when answering this question. I. If no consumer has a kinked demand curve for CDs, then the market demand curve for CDs cannot be kinked either. II. If at a price of $10, every consumer has inelastic demand, then at that price the market demand for CDs will be inelastic too. I , (C) I is false, and II is true. (D) I and II are false. (A) I and II are true. (B) I is true, and II is false. IDI 12. Good A is a Giffen good. If the price of good A were to suddenly double, the income effect would cause the purchases of good A to increase by (A) more than double. (B) exactly double (C) less than double.

統計 第二題 求詳解謝謝

成 統計學 CH4作業題目.pdf 為88 分、標準隋為和分。若已知四、乜兩組學生的數學繩平均成結為85 分、標準焉 為5分,試求: (1)乙組學生之數學平均成績為多少 ? (10%) (2)乙組學生之數學成績標準差為多少 ? (10%) 2.調查某所高中 3,600 位學生之性向測驗成績,已知其性向測驗之平均分數為 75 分、標 準差為 10 分,試求: (1)若未知其學生性向測驗成績分配狀況,則至少包含 2,700 位學生性向測驗成績之區 間為何? (10%) (2)承上,請問在哪個範圍內,其性向測驗成績不會超過400 人? (15%) (3)若性向成績呈對稱分配,請分別計算(1)、(2)中兩區間內各約多少學生人數? (15%) (4)承(3),若某人之性向測驗成績為45 分,則此人之性向測驗成績大約為全校第幾名? (10%) 註:若計算人數/名次無法除盡至整數位,請以”無條件進位”至整數位列計 3.張三參加三次考試,每多考試參加人數、平均成績、成績標準差及張三成績如下表 : 炊別|參加人數|平均成績| 標準差 | 張三成績 同各 150 67.5 15.6 六 閏 200 64.8 19.3 75 二 400 70 16 80