單項(xiàng)選擇題對(duì)全國(guó)各鐵路交通樞紐的貨運(yùn)量、貨物種類等進(jìn)行調(diào)查,以了解全國(guó)鐵路貨運(yùn)概況。這種調(diào)查屬于()

A.普查
B.抽樣調(diào)查
C.重點(diǎn)調(diào)查
D.典型調(diào)查


您可能感興趣的試卷

你可能感興趣的試題

2.多項(xiàng)選擇題某班的學(xué)習(xí)按考試成績(jī)分為60分以下,60-70,70-80,80-90,90-100,這種分組()

A.是等距分組
B.第一組假定下限是0
C.相鄰組限是重疊的
D.分組標(biāo)志為連續(xù)型變量
E.某學(xué)生的成績(jī)80分應(yīng)歸在70-80這一組

5.單項(xiàng)選擇題品合格率指標(biāo)是()

A.比例相對(duì)指標(biāo)
B.結(jié)構(gòu)相對(duì)指標(biāo)
C.比較相對(duì)指標(biāo)
D.強(qiáng)度相對(duì)指標(biāo)

最新試題

Which of the following is best to show the percentage of a total budget that is spent on each category of items?()

題型:?jiǎn)雾?xiàng)選擇題

為什么在計(jì)算平均指標(biāo)的基礎(chǔ)上還有必要進(jìn)一步計(jì)算變異指標(biāo)?

題型:?jiǎn)柎痤}

One advantage of a stem and leaf plot over a frequency distribution is that ().

題型:?jiǎn)雾?xiàng)選擇題

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 cumulative frequency of the third class?()

題型:?jiǎn)雾?xiàng)選擇題

對(duì)全國(guó)各鐵路交通樞紐的貨運(yùn)量、貨物種類等進(jìn)行調(diào)查,以了解全國(guó)鐵路貨運(yùn)概況。這種調(diào)查屬于()

題型:?jiǎn)雾?xiàng)選擇題

一個(gè)地區(qū)一定時(shí)期的商品零售額屬于()

題型:多項(xiàng)選擇題

Descriptive statistics deals with methods of()

題型:?jiǎn)雾?xiàng)選擇題

如果居民按報(bào)告期價(jià)格購(gòu)買商品需多支出40萬(wàn)元,報(bào)告期商品銷售額為200萬(wàn)元,則價(jià)格指數(shù)為()

題型:?jiǎn)雾?xiàng)選擇題

Which of the following is not the goal of descriptive statistics?()

題型:?jiǎn)雾?xiàng)選擇題

某班的學(xué)習(xí)按考試成績(jī)分為60分以下,60-70,70-80,80-90,90-100,這種分組()

題型:多項(xiàng)選擇題