1998 10 423.65 6.048908 76967.2 11.251135 10737.8 9.281526
1999 11 533.88 6.280171 80579.4 11.296998 12109.78 9.401769
2000 12 625.33 6.43828 88254 11.387974 13146 9.483873
2001 13 770.78 6.647403 95727.9 11.469265 16067.61 9.684561
2002 14 968.98 6.876244 103935.3 11.551524 19251.59 9.865349
2003 15 1219.23 7.105975 116741.2 11.667715 24108.01 10.090299
2004 16 1481.66 7.300918 136584.3 11.824697 29723.12 10.29968
y=私人汽车保有量(万辆)
X2=国民总收入(亿元)
X3=钢材产量(万吨)
怎样得到:lnYt=0.256+0.192lnX2t+0.228lnX3t+0.153t
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