A.0
B.1
C.-1
D.0.5
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A.眾數(shù)
B.中位數(shù)
C.極值
D.均值
A.簡(jiǎn)單算術(shù)平均數(shù)
B.加權(quán)算術(shù)平均數(shù)
C.簡(jiǎn)單調(diào)和平均數(shù)
D.加權(quán)調(diào)和平均數(shù)
A.兩點(diǎn)分布
B.二項(xiàng)分布
C.超幾何分布
D.泊松分布
A.9組
B.10組
C.11組
D.12組
A.演繹推理
B.完全歸納推理
C.不完全歸納推理
D.非邏輯推理
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最新試題
The number of class intervals in a frequency distribution is usually between ().
品合格率指標(biāo)是()
最能反映離散程度的指標(biāo)是()
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()
對(duì)某班級(jí)學(xué)生的生活狀況進(jìn)行統(tǒng)計(jì)調(diào)查,下列標(biāo)志中屬于不變標(biāo)志的是()
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 ().
某廠某年職工勞動(dòng)生產(chǎn)率為20000元,是歷史最高水平的1.2倍。這里的1.2倍是()
在組距數(shù)列中,下限就是()
A summary measure that is computed from a sample to describe a characteristic of the population is called()
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()