您可能感興趣的試卷
你可能感興趣的試題
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?()
Which of the following is best to show the percentage of a total budget that is spent on each category of items?()
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()
對某班級學(xué)生的生活狀況進行統(tǒng)計調(diào)查,下列標志中屬于不變標志的是()
一個地區(qū)一定時期的商品零售額屬于()
If data are grouped into intervals and the number of items in each group is listed, this could be called a ()
One advantage of a stem and leaf plot over a frequency distribution is that ().
以2000年a0為最初水平,2016年an為最末水平,計算鋼產(chǎn)量的年平均發(fā)展速度時,須開()
什么是季節(jié)變動?研究它的意義何在?如何測定季節(jié)變動?
時間序列構(gòu)成因素有哪些?分解的基本原理和思路是什么?