统计（文科）（高考真题模拟新题）

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6—8+9+10+13+15ᵫ©ª;h/=——s~~^=11,ÊᐭZ[ÄÅ?=|ÌÍ11-8Î2+Íll-9Î2+Íll-10Î2+Í11-13Î2+Í11-15ᨴ=6.8.18.K2ஹBIOஹ12Ì2012•Ñ᪗ᐰÔᔁÕÖ×ØᜩØÚ5ᐗḄÜÝÞߦàáâãÚäᴮÖᯠçØÚ10ᐗḄÜÝaè.᝞éYᜩᓬfëᒕ0ḄäᴮÖíᚗᜐᳮ.Í1ÎâÖ×ᜩàá17ÚäᴮÖhYᜩḄᑭðyÍᓫ36ᐗÎᐵòYᜩ◤hO஻Íᓫ36ঝâÖ×ᜩàá17ÚäᴮÖ100ᜩö÷Ḅᔜ◤hOḄ⚣᳛íᔜ◤hOúḄᭆ᳛hYᜩḄᑭðfûò75ᐗḄᭆ᳛.18.}6Í1ÎYü◤hO"Î17_ᑭðy=85.Yü◤hO஻<17_ᑭðy=10஻-85.ᡠyᐵò஻Ḅþᦪ}᪆Å1On-85>n<17,y=஻eN.85,2জ100ᜩᨵ10ᜩḄᑭ55ᐗ20ᜩḄᑭ65ᐗ16ᜩḄᑭ75ᐗ54ᜩḄᑭ85ᐗᡠ!100ᜩḄᑭḄ"ᙳᦪ%55X10+65X20+75X16+85X54=76.4.ঝᑭ*+,75ᐗ-./-◤12*3,164.ᦑ-ᜩḄᑭ*3,75ᐗḄᭆ᳛p=0.16+0.16+0.15+0.13+0.1=0.7.13:᝱ᑖ=14>2Ḅ?ᐵឋBCDᫀF3.14G2012•I᪗ᐰLᔁNᙠPQ᪵SᦪTᓽ,VW>2…%%g2,[2…,B*ᐰ?\Ḅᦣ^_`ᡠᨵ᪵S^ay,i=1,2,…”eᙠfg=5+1hᑣQ᪵SᦪTḄ᪵S?ᐵjᦪA.-1B.0C.D.13.DGo᪆Jrᡠᨵ^eᑖ=ᙠPᩩfghtu?ᐵឋvw?ᐵjᦪxᑮᨬᜧ|ᓽ1.ᦑ⌱D.5.1412012.~ᓭᔁNᜧḄ᝕yᓫkgBxᓫcmᐹᨵgឋ?ᐵᐵj᪷TPQ᪵SᦪTa3»,/=1,2,஻ᵨᨬḄ£=0.85-85.7bᑣ¢ᑡ¤¥*¦§Ḅ¨A.yBxᐹᨵ:Ḅ⊈ឋ?ᐵᐵjB.fgª᪵S^Ḅ«7C.`¬ᜧ᝕®1cm,ᑣᐸ°®0.85kgD.`¬ᜧ᝕170cm,ᑣ±²³ᐸW58.79kg5.DGo᪆NS⚪ὃ·gឋḄᱯ¹Bឋº»ᙠὃ·ὃ¼gឋḄ½oo⚪¾¿A,B,Cᙳ:À¨ḄឋºD⚗¨┯ÃḄgឋÄÅ⚜ÇḄ.⌱⚗DÈᦋ“`¬ᜧ᝕170cm,ᑣËDᐸᜧ°

758.79kg”.G᧕┯^NS⚪᧕┯P¼gឋ*½o¦ÍaÎᫀÏ᧕┯¼jᦪb*½o┯⌱CÏ᧕┯Ðgឋᨵ⚜ÇḄÑᵨÍaḄ¤Ò*¨ÓÀ¤ÒÃ!D⚗¨¼Ḅ.18.B10.14G2012ÔᔁN[ᔆ½¼ÖẆØḄPÙÚÛÜÝᔠᳮ³àá¬ÚÛᢥãᐜå³ḄàæÜÝç├Íᑮ᝞¢ᦪTᓫàMᐗ)88.28.48.68.89├2y(í)908483807568(1)1fg)=î+஻ᐸ/?=-20,a—y-bx(2)⚜DᙠðñḄ├ò├2Bᓫàóᯠõö(1)Ḅᐵj.¬ÚÛḄᡂS¨4ᐗ/í,ø[ᔆùÍᨬᜧᑭ¬ÚÛḄᓫàȳú3ᐗû(ᑭ=├òᦈᐭPᡂS)18.oপᵫX=i++*3+4+5+6)=8.5,>'=\+”++%+>'5+6)=80.__Aᡠy~bx=80+20X8.5=250,!"#$%&'y=-20x+250.(2),-ᔆ/0Ḅᑭ34ᐗ6⚪80L=x(-20x+250)-4(-20x+250)=-20X2+330X-1000=-20(x-^2+361.25.<=>

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$ᕒḄᦪᑖ%12,21,25,43,ᑣ-ᕒḄᦪ"/0A.101B.808C.1212D.20123.B89᪆;᪷=ᑖ᪵Ḅᭆ?NA96=/12+21+25+430A12,ᓽN=8X101=808.2012FG⚪1.82012ᓭ□KLMN;OᙢQRSTUVWXᵨᑖ᪵ḄZ[\]^ᕒஹᦟ`ஹaᵫRSὅdefḄgᐵᕒ$ijᡂljgᐵᦪ=mn⊤Agᐵᕒᦪ$ᦪ]^ᕒ35bᦟ`a3aᵫRSὅ284ᑣljḄᦪ/0A.84B.12C.81D.144I1.B89᪆;ᵫaᵫRSὅḄᦪq$ᦪrs$᪵tuv=wᦑrs6=5,ᓽljᨵ12(.2.82012yzK{;O᪥ᵬஹ"}~ᔜᨵ5123,4,5Ḅᢗ,ᢗ10ᢗḄᦪ᝞n⊤A12345ᵬ~67787

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(6-7)2+(7-7)2+(6-7)2+(7-7)2+(9-7)2=1,}jᦪ=ḄZlḄS3ᓽ3.[2012Ẇ]¡110ឋ%w£Ḅ¤¥¦§¨U©ᦿ¥«¬§¨U©ᜩ᫑᪵¯ᑮ᝞nḄᑡὶ⊤Aᵱ᝕µ©ᜩ᫑402060©ᦿ¥«203050µ6050110I*2_”(ad-dc)2(a+b)(c+d)(a+c)(b+d)'¶22110X(40X30-20X20)2·¯K—-------------------------------8᜜¹“60X50X60X50▬⊤:P(K?2)0.0500.0100.001k3.8416.63510.828¤᯿▬⊤¯ᑮḄ¾¿ÀÁ§()A.ᨵ99%ḄÃÄÅ“⌱Ç¥¦ḄZÈÉឋ%ᨵᐵ”B.ᨵ99%ḄÃÄÅ“⌱Ç¥¦ḄZÈÉឋ%Ëᐵ”C.ᙠÌ┯ÎḄᭆ᳛wÐ0.1%ḄÑÒnÅ“⌱Ç¥¦ḄZÈÉឋ%ᨵᐵ”D.ᙠÌ┯ÎḄᭆ᳛wÐ0.1%ḄÑÒnÅ“⌱Ç¥¦ḄZÈÉឋ%Ëᐵ”Ó…2110X(40X30-20X20)23.A89᪆;.K-=60X50X60X50=7.8>6.635,.•.ᨵ99%ḄÃÄÅ“⌱Ç¥¦ḄZÈÉឋ%ᨵᐵ”.4.[2012Ö×--{Ù]nᡃ§Oᦪὁ`ÜÝḄ᱄ßqàáḄâãᦪ=:᱄ßâãx(cm)173170176àáâãy(cm)170176182äàáḄâãÉ᱄ßḄâãᨵᐵåὁ`ᵨ«ឋæçᑖ᪆ḄZ[⚜ÙÝéáḄâãAAAêὃ]ÈAæçì«ḄZí§Ay^bx+a,n____Ax)(y,-y)ᐸb=J-------_——$ᐸÉî¤ïḄæçNµð.3_3__êὃᦪ=A(X,-x)=18,(xj—x)8—y)=18.ñIi=1

10Z(x-x)(y-y)4.185cm89᪆;äᐸ£=^~~'--------------)Z(xöx)2i—1÷—÷.3,,3-^ߟa—y-bx,Z(x—x)-=18,Z(x,-x)8—y)=18,i—1i=l*b=l,a—3,ᡠ«ឋæçì«Zíy=x+3,úx=182,y—185.5.
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Ḅᦈᐭx(ᐗ)y(ᐗ)ᐹᨵឋᐵᐵᑮyᐵxḄឋf=0.245x+0.321,ᵫ"#
ᦈᐭ$%&1ᐗ'ᙳ%&ᐗ.5.0.245+,᪆x./x+1,f=0.245(x+1)+0.321=0.245x+0.321+0.245,01
ᦈᐭ$%&1ᐗ'ᙳ%&0.245ᐗ.