A.算术表达式
B.条件表达式
C.变量
D.函数
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A.分类变量
B.分组变量
C.汇总变量
D.目标变量
A.If condition is satisfied
B.Random sample of cases-Approxomately
C.Use filter Variable
D.Random sample of cases-Exactly
A.计算三门课程成绩的平均分
B.计算三门课程成绩的标准差
C.计算三门课程成绩的方差
D.计算三门课程成绩的总分
A.Both file iprovide cases
B.External file is keyed table
C.Working data file is keyed table
D.Indicate case source as variable
A.待合并的两个数据文件的数据结构完全相同
B.可以是两个完全不相干的数据文件
C.在两个数据文件中,数据含义相同的数据项最好起相同的变量名
D.待合并的两个数据文件的个案数相同
A.Name
B.Label
C.Values
D.Missing
A.定类型变量
B.定序型变量
C.定距型变量
A.SPSS数据文件和Excel表格是一样的
B.数据文件中一行或一列是一个变量
C.数据文件中有变量视窗和数据视窗两个视窗
D.SPSS数据文件可以用Excel打开
A.原始数据的组织方式
B.计数数据的组织形式
A.正确收集数据
B.加工整理数据
C.分析数据
D.明确分析目标
最新试题
A student achieves an 82 on the first test in a statistics course. From this, she assumes that her average at the end of the semester (after other tests) will be about 82. This is an example of ().
A cumulative frequency distribution would provide().
某厂某年职工劳动生产率为20000元,是历史最高水平的1.2倍。这里的1.2倍是()
The number of phone calls arriving at a switchboard each hour has been recorded and the following frequency distribution has been developed.What is the approximate range of the number of phone calls arriving each hour?()
常用的长期趋势测定的方法有哪些?各有什么特点?
如果居民按报告期价格购买商品需多支出40万元,报告期商品销售额为200万元,则价格指数为()
One advantage of a stem and leaf plot over a frequency distribution is that ().
A politician who is running for the office of premier in a state with 3 million registered voters commissions a survey. In the survey, 53.6% of the 5000 registered voters interviewed say they plan to vote for him. The population of interest is the()
要了解某地区全部大学生的就业情况,那么()
变量数列中,各组频率之和应()