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1、題1.近幾年,中國(guó)房地產(chǎn)業(yè)得到了長(zhǎng)足的發(fā)展,但房地產(chǎn)價(jià)格的上漲一直飽受爭(zhēng)議,甚至有逃離“北、上、廣”的言論,這也從側(cè)面反映了房地產(chǎn)價(jià)格的區(qū)域性特征,下表為2008年中國(guó)31個(gè)省、市、自治區(qū)房地產(chǎn)業(yè)的相關(guān)統(tǒng)計(jì)數(shù)據(jù),試根據(jù)這些數(shù)據(jù)進(jìn)行聚類分析。表1中指標(biāo)說(shuō)明如下:X1:房屋平均銷售價(jià)格;X2:住宅平均銷售價(jià)格;X3:別墅、高檔公寓平均銷售價(jià)格;X4:經(jīng)濟(jì)適用房平均銷售價(jià)格;X5:辦公樓平均銷售價(jià)格;X6:商業(yè)營(yíng)業(yè)用房平均銷售價(jià)格X7:其他平均銷售價(jià)格;X8:商品房銷售面積;X9:住宅銷售面積表1省份X1X2X3X
2、4X5X6X7X8X91北京1241811648195413813165541714864161335.371031.432天津6015559811107357197831033891951252.041135.353河北27792743637522083692391521022231.842128.864山西2355225357411466611528672545994.71893.105內(nèi)蒙古24832265410416904822408026602396.372093.346遼寧375835757265
3、20954783614938884091.163731.197吉林25072399617519323256368732131583.871435.738黑龍江28322642541417852804433030191486.571286.629上海8195811512792184711783661055292339.292007.4810江蘇40493802772919225906617225676091.865282.8911浙江62626144942430929716744631802992.22480.
4、7412安徽29492808405817314596462721392785.832542.613福建43844498733423135386830316861625.671250.0014江西21362022314110982840403920571727.61604.8615山東29702851725618265601460124405507.645039.416河南23392138361813724367506519333191.982943.3617湖北300128986191190051224863
5、35131941.621821.3118湖南23022113400713884212456419692655.512413.719廣東595357236817238010554863052964852.284360.4520廣西28262634460118804959607729261768.041637.9921海南5443544190581686583154615157372.44358.7222重慶27852640632217514667543224892872.192669.9323四川3157306
6、7793412665688452823973501.273247.3224貴州2339212247381926367259672935908.2848.1125云南26802441323014414860520330861643.081478.2526西藏3202310335472133100004554120066.4962.0827陜西29522821558916915571505631491513.011426.0628甘肅1958185120821264289940082134624.66588.63
7、29青海2460238427681214327142462625147.89141.2330寧夏2435221553451447372642431570514.81453.2631新疆2240210036841333518441562434954.35886.35題2.為研究某地區(qū)人口死亡狀況,已按某種方法將15個(gè)已知樣品分為3類,指標(biāo)及原始數(shù)據(jù)見表2,試建立判別函數(shù),并判定另外4個(gè)待判樣品屬于哪類?表2X1:0歲組死亡概率X4:55歲組死亡概率X2:1歲組死亡概率X5:80歲組死亡概率X3:10歲組死亡概率
8、X6:平均預(yù)期壽命組別序號(hào)X1X2X3X4X5X6第一組1234534.1633.0636.2640.1750.067.446.349.2413.4523.031.121.081.041.432.837.876.778.9713.8823.7495.1994.0897.30101.20112.5269.3069.7068.8066.2063.30第二組1234533.2432.2241.1553.0