已选分类
管理学工商管理
单选题反映个别现象变动的相对数是( )。 A．个体指数 B．综合指数 C．总指数 D．定基指数
单选题If n is an integer, which of the following CANNOT be a factor of 3n+4?
单选题
单选题若各个变量值都扩大2倍，而频数都减少为原来的1/3，则平均数( )。 A．扩大2倍 B．减少1/3 C．不变 D．不能预期平均数的变化
单选题For the positive numbers, n, n+1, n+2, n+4 and n+8, the mean is how much greater than the median?
单选题统计测定必须遵循的两个重要原则是( )。 A．实用与科学 B．科学与合理 C．互补与无穷 D．互斥与穷尽
单选题平均增长速度等于平均发展速度( )。 A．减1 B．加1 C．加100 D．减100
单选题
单选题
单选题
单选题下列属连续变量的是( )。 A．工厂数 B．人数 C．净产值 D．设备台数
单选题 Now that you've gotten a little more confident, we're going
to give you the opportunity to practice "without the training wheels." When you
want to check your work, you can turn to the solutions at the end. If you aren't
familiar with some of the mathematical concepts, make a note to pay particular
attention to that chapter in this book; this practice set covers a wide range of
topics tested on the GMAT. On all data sufficiency problems,
the answer choices are the same (as you've learned). We've put them here for
your reference. Ａ. Statement (1) ALONE is sufficient, but
statement (2) alone is not sufficient. Ｂ. Statement (2) ALONE
is sufficient, but statement (1) alone is not sufficient. Ｃ.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is
sufficient. Ｄ. EACH statement ALONE is sufficient.
Ｅ. Statements (1) and (2) TOGETHER are NOT sufficient.
单选题In an office, 40 percent of the workers have at least 5 years of service, and a total of 16 workers have at least 10 years of service. If 90 percent of the workers have fewer than 10 years of service, how many of the workers have at least 5 but fewer than 1 0 years of service? (A) 48 (B) 64 (C) 80 (D) 144 (E) 160
单选题1．统计整理阶段最关键的问题是( )。 A．对调查资料的审核 B．统计分组 C．统计汇总 D．编制统计表
单选题累积增长量等于( )。 A．报告期水平与基期水平之差 B．报告期水平与前一期水平之差 C．报告期水平与某一固定基期水平之差 D．逐期增长量之差
单选题Over the last 40 years there has been a great increase not only in the number of agricultural pesticides in use but also in the care and sophistication with which they are used by farmers. Nevertheless, the proportion of agricultural crops lost to certain pests worldwide has increased over the same period, even when the pests concerned have not developed resistance to existing pesticides.
Which of the following, if true, best explains how improvements in pesticide use have been accompanied by greater losses to certain pests?
单选题
注册资金在（ ）万元以上的经纪人，可应委托方的要求进行隐名经纪。
A、30万 B、50万 C、100万 D、10000万
单选题统计分组的原则是( )。 A．列举与互斥 B．穷举与互斥 C．列举与交互 D．穷举与交互
单选题If x and y are integers, is xy+1 divisible by 3? (1)When x is divided by 3, the remainder is 1. (2)When y is divided by 9, the remainder is 8.
单选题固定资产投资完成额是( )。 A．时期指标 B．时点指标 C．实物指标 D．相对指标