学科分类

已选分类 管理学工商管理
单选题全及总体是唯一确定的,样本总体( )。 A.也唯一 B.有无数个 C.不唯一 D.定值
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单选题独立性检验与拟合优度检验相比,其特点是:( )。 A.检验用的分布不同 B.检验用的理论频数导出方法不同 C.检验用的自由度不同 D.检验结果的判断方向不同
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单选题若有40对成对数据,其中10寸没有差别,则成对比较检验时,检验所用的样本容量为( )。 A.40 B.10 C.39 D.30
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单选题How many positive prime numbers are less than the integer n? (1)14<n<20 (2)13<n<17 (A) 条件(1)充分,但条件(2)不充分. (B) 条件(2)充分,但条件(1)不充分. (C) 条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分. (D) 条件(1)充分,条件(2)也充分. (E) 条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.
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单选题If r⊙s=rs+r+s, then for what value of s is r⊙s equal to r for all values of r?
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单选题Questionsrefertothefollowinggraph.AVERAGECOSTSOFOPERATINGSUBCOMPACT,COMPACT,ANDMIDSIZECARSINTHEUNITEDSTATES,1982~1986
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单选题The inflation index for the year 1989 relative to the year 1970 was 3.56, indicating that, on the average, for each dollar spent in 1970 for goods, $3.56 had to be spent for the same goods in 1989. If the price of a Model K mixer increased precisely according to the inflation index, what was the price of the mixer in 1970? (1)The price of the Model K mixer was $102.40 more in 1989 than in 1970. (2)The price of the Model K mixer was $142.40 in 1989. (A) 条件(1)充分,但条件(2)不充分. (B) 条件(2)充分,但条件(1)不充分. (C) 条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分. (D) 条件(1)充分,条件(2)也充分. (E) 条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.
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单选题Intheadditionproblemabove,thenumber□mustbe(A)5(B)6(C)7(D)8(E)9
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单选题When the integer n is divided by 6, the remainder is 3. Which of the following is NOT a multiple of 6? (A) n-3 (B) T+3 (C) 2n (D) 3n (E) 4n
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单选题Questionsrefertothefollowinggraph.1977~1978TEXTB()OKINVENTORYFORSCHOOLSXANDYBYYEAROFPURCHASE(asapercentofthe1977~1978inventory)Note:AllbookswerepurchasednewonJuly1ofeachyear.
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单选题宏观投资环境统计不包括( )。 A.生活文化因素统计 B.经济因素统计 C.政治和法律因素统计
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单选题甲班学生平均成绩80分,标准差8.8分,乙班学生平均成绩70分,标准差8.4分,因此( )。 A.甲班学生平均成绩代表性好一些 B.乙班学生平均成绩代表性好一些 C.无法比较哪个班学生平均成绩代表性好 D.两个班学生平均成绩代表性一样
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单选题变动的股利政策的主要优点是()
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单选题IftankXcontainsonlygasoline,howmanykilolitersofgasolineareintankX?(1)IfofthegasolineintankXwerepumpedoutthetankwouldbefilledtoofitscapacity.(2)If0.75kiloliterofgasolinewerepumpedintotankX,itwouldbefilledtocapacity.
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单选题指数按其反映对象范围的不同,可以分为( )。 A.个体指数和总指数 B.简单指数与加数指数 C.动态指数和静态指数 D.数量指数和质量指数
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单选题标志值较小的一组其权数较大时,则算术平均数( )。 A.接近标志值较大的一组 B.接近标志值较小的一组 C.不受权数影响 D.仅受标志值影响
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单选题On a certain scale of intensity, each increment of 10 in magnitude represents a tenfold increase in intensity. On this scale, an intensity corresponding to a magnitude of 165 is how many times an intensity corresponding to a magnitude of 125? (A) 40 (B) 100 (C) 400 (D) 1,000 (E) 10,000
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单选题抽样调查与典型调查的根本区别在于( )。 A.调查的范围不同 B.选取调查单位的方法不同 C.组织方式不同 D.作用不同
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单选题There were 36,000 hardback copies of a certain novel sold before the paperback version was issued. From the time the first paperback copy was sold until the last copy of the novel was sold, 9 times as many paperback copies as hardback copies were sold, if a total of 441, 000 copies of the novel were sold in all, how many paperback copies were sold? (A) 45,000 (B) 360,000 (C) 364,500 (D) 392,000 (E) 396,900
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单选题方差分析是 A.检验多个总体的方差是否相等 B.检验多个总体的均值是否相等 C.比较多个总体的方差大小 D.比较多个总体的均值大小
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