16.定基發(fā)展速度與環(huán)比發(fā)展速度之間的關(guān)系表現(xiàn)為：定基發(fā)展速度等于相應(yīng)時(shí)期內(nèi)環(huán)比發(fā)展速度(      )

A.的連乘積                                                      B.的連乘積再減去100%

C.之和                                                             D.之和再減去100%

17.評(píng)比城市間的社會(huì)發(fā)展?fàn)顩r，將各城市每人分?jǐn)偟木G化面積按年排列的時(shí)間數(shù)列是屬于(      )

A.總量指標(biāo)的時(shí)期數(shù)列                                    B.總量指標(biāo)的時(shí)點(diǎn)數(shù)列

C.相對(duì)指標(biāo)時(shí)間數(shù)列                                        D.平均指標(biāo)時(shí)間數(shù)列

18.計(jì)算其他動(dòng)態(tài)數(shù)列分析指標(biāo)的基礎(chǔ)是(      )

A.發(fā)展速度                                                      B.平均發(fā)展速度

C.發(fā)展水平                                                      D.平均發(fā)展水平

19.如果變量X和變量Y之間的相關(guān)系數(shù)為-1，這說(shuō)明兩個(gè)變量之間是(      )

A.低度相關(guān)關(guān)系                                               B.完全相關(guān)關(guān)系

C.高度相關(guān)關(guān)系                                               D.完全不相關(guān)

20.產(chǎn)量X(千件)與單位成本Y(元)之間的回歸方程為Y=77-2X,這表示產(chǎn)量每提高1000件,單位成本平均(      )

A.增加2元                                                      B.減少2000元

C.增加2000元                                                 D.減少2元

21.相關(guān)系數(shù)r的取值范圍是(      )

A.-∞＜r＜+∞                                                 B.-1≤r≤+1

C.-1＜r＜+1                                                     D.0≤r≤+1

22.以下哪個(gè)是質(zhì)量指標(biāo)指數(shù)？(      )

A.銷售額指數(shù)                                                  B.銷售量指數(shù)

C.銷售價(jià)格指數(shù)                                               D.工人人數(shù)指數(shù)

23.在綜合指數(shù)中 ，同度量因素是(      )

A.q₀                                                                 B.p₀

C.q₁                                                                 D.p₁

24.現(xiàn)象總變動(dòng)指數(shù)是總量指標(biāo)指數(shù)和質(zhì)量指標(biāo)指數(shù)的(      )

A.商                                                                B.乘積

C.和                                                                D.差

25.關(guān)于樣本統(tǒng)計(jì)量和總體參數(shù)，以下表述正確的是(      )

A.前者是確定值，后者是隨機(jī)變量                   B.前者是隨機(jī)變量，后者是確定值

C.兩者均是確定值                                           D.兩者均是隨機(jī)變量