袋中有三金幣，五銀幣若袋中取幣兩次，每次取出一個，每個幣被抽到的機率相等取出的幣不放回，求下列各事件的機率 (1):第一次與第二次都取到銀幣 （的）：第二次取道金幣

本网站报告日甲辰年三月二十 1143 N BLOG 單元4 條件機率 5. 袋中有3個金幣,5個銀幣,若由袋中取幣兩次,每次取出1個,每個幣被取到的機率 相等,取出的幣不放回,求下列各事件的機率。 (1)第一次與第二次都取到銀幣。 (2)第二次取到金幣。 XD) CF ct

求過程🥺

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求解

統計學11002期末考 已作答:0/7 題 姓名:處妍論, 測驗及格:60分 3 根據學籍資料顯示,有101 位修畢大學投資課程的學生,其學期平均成績的標準差為0.710,而 61 位退選此一課程的學生,其平均成績的標準差為 1.222.此資料是否顯示,修畢與退選財務會計課程的學生其學期平均成績的變異數確有差異?使用0.05 的顯著水 準。 (10%) 大小 • BIUSxxA-A- 三 LI @ 10分 交卷 上一頁 下一頁 Copyright © Southern Taiwan University of Science and Technology. All rights reserved. 南臺科技大學計網中心(STUST Computer Network Center) 建置 選課資料最後更新日期:2022年06月07日 FA M fo ::: 201 £11 32°C 小雨 ^ 后

第五題不太懂 求解

上午7:21 0 2. | 66 I') x ' A - WA -- 2x +3 (2) g(x)=(42-7) 則 g(2)=? (3) 設 h(x)= 則 h'(3)=? 2x3) 3x-8 (4)g(x)=2tan(x)+(sin(x2 + 2x)) g'(0)=? 2 設某商品之需求函數為 x=12000-10p° 其中x表示需求量p 表示 價格試計? (a). 需求彈性 E(10) (b). E(20)並解釋其意義(C). E(30)並解釋其意義 (d). 當p=16 時 p上升1%,此時收益會增加或減少?為何? 3. 設硬碟製造商 Texar,欲以每台p元的批發價每周在市場上供應x千台 1GB UBS 碟機x 與p的關係為供應方程式 x=-3xp+p°=0 目前每台硬碟的單價為10 元供 量為4000 台且單價以每周 0.1 元的速率上漲,則供應量的變化率為何? 4.設函数f(x)=f(x); x2 x2 +9 試計算f之 (1) 臨界點 (2). 遞增區間遞減區間 (3).反曲點 (4). 凹口向上區間,凹口向下區 (5) 相對極大值或相對極小值 (6).漸進線 (7) 圖形 5. (a). g(x)=2x5.e-(x-1) „W! g'(1)= ? (b). h(x)=x3 . log. 12x-1) 則 h(1)=? (c). m(x)=6* x3 – 5* x2 , m'(1)= ? (d).L(x)=x2* BIJ L'(1)=? 6. 設某公司生產一款電動鉛筆機之每天邊際成本為 C'(x)=0.006x2-0.06x+2 其中C'(x)是以元/個計之,而x表產量, 此外該公司每天固定成本為100 元, 試計算下列: (a). 生產前30 個 產品之每天的總成本 (b). 生產第31 個產品時之每天的總成本 7. (a). F(x)=cos(3x - 2x+5) F(0)=? (b).設一長為10 英呎的梯子傾斜靠在一垂直 牆上,已知梯腳以1/4(英呎/分鐘)速度向右滑動(遠離牆面),則梯腳離牆8英呎時样 沿牆向下滑動的速度為何?(c).試用微分之線性近似的概念,求:16.08近似值至 數點第4位。(需寫出計算過程)。 8. 試計算下列: 第一頁 共2頁 x2 =? (a) lim x-00%-2- (b). lim ((In(n)) n2 =? (c). lim (1) n00 9. (a). 試以微積分之方法求出內接於半徑為9之半圓內之長方形的最大面積, (b) 試計算點(14) 至曲線 y= 2x 之最近的距離 | 立

大一公衛系微積分，求第二題解

公衛系 微積分期末考 (28/12/2018) 1. Use the Laplace transform to solve the differential equations. (1) j(t)+2y(t) = x(t), y(0)=1, x(t)=10, t20 (20) (2) Intravenous glucose is a treatment. Disposed at a fixed rate k grams per minute inputs into the blood, while blood glucose will be converted to other substances or moved to another place, at a rate proportional to the amount of glucose in the blood, the proportionality constant is a (a> 0), the initial amount of glucose in the blood is M. A. Find the variation in the amount of glucose in the blood (15) B. Determining the equilibrium, the amount of glucose in the blood. (5) = 2. SI Epidemic Model : The size of the population, n+1, remains fixed. Let i(t) be the number of infectives at time t, and let s(t) be the number of individuals who are susceptible. Given an initial number of infectives iO), we would like to know what will happen to i(t). SI Epidemic Model is described by the differential equation. di(t) = k·i(t).s(t) ......(5.1) dt i(t)+s(t)=n+1 i(0)=i, (1) Solve this differential equation of the SI Epidemic Model (5.1). (10 h) (2) What is the peak times t of the epidemic spread? (10) 3. Consider the Two-compartment physiological models and is shown in figure 1. C1 (t) represent the drug concentration in the first compartment and C2 (t) represents the drug concentration in the second compartment. Vi and V2 represent the compartment volume. Use the first order linear differential equation general solution to solve the C1 (t) (20 ) and use the Laplace transform to solve C2 (t). 【20 分). | 世」!()

發問 數學

作業三 學號: 姓名: 練習三:函数、序列、字串與關係 1. (8%)R是定義在A = {1,2,3,4} 的一個關係,請問下列R是否為一個函數?说明原因。 (a). R = {(1,1), (2,3), (3,1) (C). R = {(1,4), (2,3), (3,1), (2,2)} (b). R = {(1,4), (2,4), (3,4), (4,4)} (d). R = {(1,1), (2,2), (3,3), (4,4)} 2. (8)寫出上題函數R的定義域、對應域與值域,並茎出吸序。 3. (8%)令了為自X = {0.1, 2. 3, 4到X的函数,f(x) = 4x mod 5,写出了的 有序對集合,並判斷是否為一對一或染成函数·說明之。 作業三 李我: 姓名 4. (8%)令行為定義於實数的一個函数,已知(x) = 3logx,求y? 5. (6%)定義序列s為 11 S =

急 求救統計 #6 （可支薪）

6.The National Science Foundation (NSF) sponsored a study on girls participation in informal science, technology, engineering, or mathematics (STEM) programs. The results of the study were published in Cascading Influences: Long-Term Impacts of Informal STEM Experiences for Girls (March 2013). The researchers sampled 174 young women who recently participated in a STEM program. They used a pie chart to describe the geographic location (urban, suburban, or rural) of the STEM programs attended. Of the 174 participants, 107 were in urban areas, 57 in suburban areas, and 10 in rural areas. a. Determine the proportion of STEM participants from urban areas. b.Determine the proportion of STEM participants from suburban areas. c.Determine the proportion of STEM participants from rural areas. d. Multiply each proportion in parts a-c by 360 to determine the pie slice size (in degrees) for each location. e.Use the results, part d, to construct a pie chart for geographic location of STEM participants. f.Interpret the pie slice for urban areas. g.Convert the pie chart into a bar graph. Which, in your opinion, is more informative?

急！求救 #6 8 9 如果需要酬勞可私下談 （ex.$70題）

pie participation in informal 6.The National Science Foundation (NSF) sponsored a study on girls' science, technology, engineering, or mathematics (STEM) programs. The results of the study were published in Cascading Influences: Long-Term Impacts of Informal STEM Experiences for Girls (March 2013). The researchers sampled 174 young women who recently participated in a STEM program. They used a pie chart to describe the geographic location (urban, suburban, or rural) of the STEM programs attended. Of the 174 participants, 107 were in urban areas, 57 in suburban areas, and 10 in rural areas. a.Determine the proportion of STEM participants from urban areas. b.Determine the proportion of STEM participants from suburban areas. c.Determine the proportion of STEM participants from rural areas. d. Multiply each proportion in parts a-c by 360 to determine the pie slice size (in degrees) for each location. e.Use the results, part d, to construct a pie chart for geographic location of STEM participants. f.Interpret the pie slice for urban areas. g.Convert the pie chart into a bar graph. Which, in your opinion, is more informative? 7. All high way bridges in the US are inspected periodically for structural deficiency by the FHWA. Data from the FHWA inspections are compiled into the National Bridge Inventory (NBI). Classify each variable below as quantitative or qualitative. a. Length of maximum span (feet). b. Number of vehicle lanes. c. Toll bridge (yes or no). d. Average daily traffic. e. Condition of deck (good, fair, or poor). f. Bypass or detour length (miles). g. Route type (interstate, U.S., state, county, or city) 8. The NBI data were analyzed and the results made available at the FHWA Web site. Using the FHWA inspection ratings, each of the 608,272 highway bridges in the US was categorized as structural deficient, functionally obsolete, or safe. About 13.5% of the bridges were found to be structural deficient, while 3.5% were functionally obsolete. a. What is the variable of interest to the researchers? b. Is the variable of part a quantitative or qualitative? c. Is the data set analyzed a population or a sample? Explain. d. How did the NBI obtain the data for the study?

數學/統計學/共變異數/相關係數 想請問一下題目上的第三題要如何求算ಥ_ಥ （網路上查到的題型都是實數對實數，這裡是給一個範圍⋯而且求的是開架跟天數而不是兩區的差別） 附上上課給的範例嗚嗚嗚 麻煩了ಥ_ಥ謝謝各位

Question 2 (125) V2 某家位於美國中部小鎮之小型房地產仲介,現想瞭解物件自委託到買賣成立所需的時間。該 公司分析近近三年來成交的 800 筆資料,整理如下表。 成交所需天數 30 天以內 31-90 天 90 天以上 總和 $150,000 以下 50 40 10 100 6 6:125 $150,000-$199,999 20 150 開價 80 250 0,3125 $200,000-$250,000 20 280 100 400 05 $250,000 以上 10 30 10 50 總和 100 500 200 800 如果該公司簽下委賣合約,開價在$150,000 以下,則成交天數在90 天以下的機率 為何? b. 如果事件 A表示成交所需天數在90天以上,事件B表示開價在$150,000 以下, 請問事件A與B 是否為獨立事件?試說明之。 C. 假設該公司將800 筆數據又細分為東區及西區(兩區房價分佈相似),並統計在售價 區間的平均銷售天數,其結果呈現如下表。試算共變異數及相關系數,說明開價與平 均銷售天數有甚麼關係。 平均銷售成所需天數 0,0625 a. 東區 西區 PC62 37 42 54 66 開價 $150,000 以下 $150,000-$199,999 $200,000-$250,000 $250,000 以上 71 82 46 50 出S(新) 法制度信天名之戈登发 才有哪 and AND cing 0 .action 2 (104)

#python #程式設計 #程式碼 想問紅色圈起來的部分有甚麼用途呢？

print("{} 的成績為{}'.format(name, score)) # 林小明的成績 為 80 第一對大括號代表 name 變數,第二對大括號代表 score 變數。 範例實作:格式化列印成績單 一年二班有三位同學,請設計程式幫老師以 print 命令的參數格式化方式整齊 列印出班級成績單(<format.py>) IPython console 美食 Console 1/4 X F/ch02') 姓名 座號 國文 數學 英文 林大明 1 100 79 | 陳阿中 2 74 88 100 張小英 11 82 55 History log IPython console 87 程式碼:ch02\format.py l print("姓名 座號 國文 數學 英文") 2 print("%3s %2d %3d 3d %3d" % ("#XHA", 1, 100, 87, 79)) 3 print("%35 %2d %30 %30 %3d" % (" BET ", 2, 74, 88, 100)) 4 print("%3s %2d %3d %3d %3d" % ("56", 11, 82, 65, 8)) 程式說明 72 座號佔2個字元,姓名、國文、數學、英文都佔3個字元。 2-11