題庫堂
檢索
題庫堂
首頁
數學
英文學習
政治學
統計學
經濟學
藥理學
中醫藥物學
財政學
法學知識
公共行政
警察學
BI規劃師
財務管理
公共衛生學
工程經濟學
電力電子學
當前位置:
首頁
1.()假設甲、乙兩縣人口一樣多,曱、乙兩縣的國民所得分布都很接近常態分布,其中甲縣平均國民 所得為100萬元,標準差為5萬元;乙縣平均國民所得為120萬元,標準差為10萬元。若用粗線表示甲 縣國民所
問題詳情
1.()假設甲、乙兩縣人口一樣多,曱、乙兩縣的國民所得分布都很接近常態分布,其中甲縣平均國民 所得為100萬元,標準差為5萬元;乙縣平均國民所得為120萬元,標準差為10萬元。若用粗線表示甲 縣國民所得分布曲線;細線表示乙縣的國民所得分布曲線,則下列哪一個分布圖較為正確?(單選)
(A)
(B)
(C)
(D)
(E)
參考答案
答案:D
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)
上一篇 :
29.( )China is _____ in natural resources, such as coal and iron.(A)absorbed (B)engaged(C)caught(D)r
下一篇 :
16. 下列各指定原子序之元素可以形成 AB3型化合物的是 (A)6 和 17 (B)1 和 7 (C)12 和 9 (D)11 和 16 (E)3 和 8。
資訊推薦
30.( )I was ______ from too much work. I should take a rest.(A)absent(B)free(C)different(D)tired
21.( )To master English, you may keep a dictionary ______.(A)at hand(B)at once(C)at most(D)at fault
【題組】42. ( ) What can parents do to solve the “sibling rivalry” problem?(A) Do not show attention to
17. 原子序 34 之原子的價電子數為 (A)3 (B)4 (C)5 (D)6 (E)7。
三、文法 (共 20 分,每題 2 分)31.( )I don’t have much money, but if I ______ a millionaire, ______.(A)were; I
19. A、B、C、D、E 五種元素在週期表中位置如下,已知 B 的原子序為 n,則五種元素原子序之和可能為 (A)5n+6 (B)5n+8(C)5n+10 (D)5n+16 (E)5n+18。
22.( )My husband and I drove the car ______ way down to Kaohsiung.(A)by chance(B)by degrees (C)by ac
【題組】43. ( ) What is the main idea of the passage?(A) Parents should notice the sibling rivalry among
18. 下列各數字代表週期表元素之原子序,何組的化學性質最不相似? (A)3,11,19 (B)12,20,38 (C)2,4,12 (D)9,17,35 (E)6,14,32。
32.( )If I ______ hard in my senior high, I ______ National Taiwan University then.(A)studied; would
4. 【題組】(1)△ ABC的面積=__________
23.( )______ proper diet, regular exercise is essential to health.(A)In addition to(B)In advance(C)I
【題組】44. ( ) Which of the following statements is sibling rivalry?(A) Sisters go shopping together.(B
35.( )I strongly recommend that the athletic meet ______.(A)is postponed(B)be postponed(C)postpone(D
33.( )If I ______ to swim when I was young, I ______ able to swim now.(A)had learned; would be (B)le
2. When Taiwan ____ in the 70s and 80s, air pollution became very bad.(A) experimented (B) manufactu
24.( )To show your apology, you had better go there and tell her _____.(A)in addition (B)in vain(C)i
【題組】45. ( ) Which of the following underlined words has the closest meaning to “rivalry”?(A) There a
36.( )It’s time that you ______ in your assignment; after all, today is the deadline.(A)turn(B)turne
34.( )She talks as if she _____ my mom.(A)was (B)is(C)were (D)will be
3.My teacher gave me an ____ dictionary to help me learn English. (A) electric (B) technological (C)
25.( )Children are naturally ______ about everything around them.(A)anxious(B)angry(C)curious(D)disa
(二)The Internet is a great way to shop. It is easy to find anything you want at any time because the
37.( )The number of the foreign students in our college _____ to 500 so far.(A)grows(B)have grown(C)
12. 下列哪一粒子之荷質比的數值為最小值? (A)12C 原子 (B)氫離子 (C)α 粒子 (C)電子 (D)質子。