2do Parcial Estadística

 

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B ZGPBG ? puatls BAZXPWJJBLAGZ 5 rgdcbjg cds sbkubgatgs prug`ds hg fbpútgsbs hg nghbds, WXBCBUDAHL CLZ 8 YDZLZ JLPPGZYLAHBGAXGZ. Wa od`rbjdatg hg cänpdrds gcâjtrbjds gstä gasdydahl ua augvl nâtlhl hg prlhujjbúa qug sg jlasbhgrdrä djgptd`cg, sb cds cänpdrds l`tgabhds plr gstg nâtlhl hda cukdr d uad pl`cdjbúa alrndc hg hurdjbúa nghbd qug sgd hbogrgatg d 0899 flrds, jla uad hgsvbdjbúa gstäahdr bkudc d :99. Zg tlnd uad nugstrd hg 499 cänpdrds prlhujbhds plr gstg nâtlhl y gstd nugstrd tbgag uad hurdjbúa nghbd hg 0:09 flrds. ¼Zg pughg djgptdr cd fbpútgsbs hgc augvl prljgsl hg od`rbjdjbúa jla ua abvgc hg sbkabobjdjbúa hgc 8%<

Wad lobjbad hg bavgstbkdjbúa hg ngrjdhls, `dsd sus tdrbods ga cd fbpútgsbs qug cds prgkuatds hg uad gajugstd tgcgoúabjd sg pughga jlatgstdr ga ua tbgnpl nghbl hg 47 nbautls l näs. Zb gs agjgsdrbl ua ndylr tbgnpl hg gajugstd, sg dpcbjd uad tdrbod dhbjbladc. Zuplakd qug ga uad nugstrd hg 4:7 jlaogrgajbds sg l`tbgag uad nghbd hg 4; nbautls y uad hgsvbdjbúa gstäahdr hg 8 nbautls. Jla ua abvgc hg sbkabobjdjbúa hgc 0%, ¼sg eustbobjd d tdrbod dhbjbladc<

BB ZGPBG ? puatls BAZXPWJJBLAGZ 5 rgdcbjg cds sbkubgatgs prug`ds hg fbpútgsbs hg prlplrjblags, WXBCBUDAHL CLZ 8 YDZLZ JLPPGZYLAHBGAXGZ. Wad dkgajbd hg gnpcgls dobrnd qug gc 69% hg tlhds cds slcbjbtuhgs rgdcbzdhds plr nuegrgs jla fbels prgobgrga trd`dels d tbgnpl pdrjbdc. Ga uad nugstrd dcgdtlrbd hg 099 slcbjbtdatgs nuegrgs jla abôls, sg gajlatrú qug 449 prgobrbgrla trd`dels d tbgnpl pdrjbdc. Yrug`g qug cd fbpútgsbs hg cd dkgajbd, al gs bkudc dc 69%, jla ua abvgc hg sbkabobjdajbd hgc ?%.

Gc rgkbstrdhlr hg jbgrtd uabvgrsbhdh fd hbjfl qug gstä hbspugstl d pgrnbtbr uad sgjjbúa hgc jursl hg Gstdhîstbjd uad vgz d cd sgndad, sb näs hgc ?7% hg cls gstuhbdatgs ndtrbjucdhls ga gc jursl gxprgsda qug prgobgrga gc jursl uad vgz d cd sgndad, ga cukdr hg hls vgjgs d cd sgndad. Yrlplag prl`dr cd fbpútgsbs qug ngals hgc ?7% prgobgrga gc jursl uad vgz d cd sgndad. Ga uad nugstrd dcgdtlrbd hg 89 gstuhbdatgs, :9 bahbjdrla su prgogrgajbd hg uad vgz d cd sgndad. Wsdahl ua abvgc hg sbkabobjdajbd hgc 7%, hg`g gc rgkbstrdhlr dutlrbzdr gc lorgjbnbgatl hgc jursl hg Gstdhîstbjd uad vgz d cd sgndad<

BBB ZGPBG : puatls BAZXPWJJBLAGZ 5 jdcjucg cd sbkubgatg hbstrb`ujbúa nugstrdc pdrd hbogrgajbd hg nghbds.  D y @ od`rbjda hls tbpls hg jd`cgs, qug tbgaga uads rgsbstgajbds nghbds d cd rlturd hg 8999 y 8799 mk, jla hgsvbdjblags gstäahdr hg :99 y 099 mk, rgspgjtbvdngatg. Zb sg jlnprug`da 499 jd`cgs hg D y 79 jd`cgs hg @, ¼Juäc gs cd prl`d`bcbhdh qug cd nghbd hg rgsbstgajbd d cd rlturd hg @ sgd dc ngals ?99 mk näs qug D<