A.存量指標(biāo)
B.流量指標(biāo)
C.水平指標(biāo)
D.實(shí)物指標(biāo)
E.價(jià)值指標(biāo)
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A.總標(biāo)題
B.橫行標(biāo)題
C.縱欄標(biāo)題
D.數(shù)據(jù)資料
E.表末附注
A.同質(zhì)性
B.互斥性
C.完備性
D.分散性
E.整齊性
A.抽簽法
B.搖獎(jiǎng)法
C.配對法
D.配額法
E.隨機(jī)數(shù)表法
A.實(shí)際經(jīng)濟(jì)增長率
B.通貨膨脹率
C.失業(yè)率
D.痛苦指數(shù)
A.取值都在0與1之間
B.均值為0
C.均值為1
D.標(biāo)準(zhǔn)差為1
最新試題
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？（）
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 （）.
Simon Arnett, Director of Human Resources, is exploring the causes of employee absenteeism at Buderim Bottling during the last operating year (1 January 2005 to 31 December 2005). The average number of absences per employee, calculated from the personnel data of all employees, is a （）.
某班的學(xué)習(xí)按考試成績分為60分以下，60-70，70-80，80-90，90-100，這種分組（）
某企業(yè)的生產(chǎn)計(jì)劃完成百分比采用如下分組，請指出哪項(xiàng)是正確的（）
If data are grouped into intervals and the number of items in each group is listed, this could be called a （）
Which of the following is not the goal of descriptive statistics?（）
一個(gè)地區(qū)一定時(shí)期的商品零售額屬于（）
Which of the following is best to show the percentage of a total budget that is spent on each category of items？（）
One advantage of a stem and leaf plot over a frequency distribution is that （）.