判斷題在SPSS中,只有取值是數(shù)字的才是變量。
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Descriptive statistics deals with methods of()
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If the individual class frequency is divided by the total frequency, the result is the ().
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The number of class intervals in a frequency distribution is usually between ().
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A cumulative frequency polygon is also called ().
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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?()
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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()
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時(shí)間序列構(gòu)成因素有哪些?分解的基本原理和思路是什么?
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要了解某地區(qū)全部大學(xué)生的就業(yè)情況,那么()
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