在主成分分析中,对原始数据作标准化处理后得到其相关系数矩阵的特征值及特征向量如下表所示: 4.9154 (0.4314, 0.4067, 0.3872, 0.4191, 0.3539, -0.1778, -0.3138, 0.2602) 1.2435 (-0.0521,-0.3403,0.0257,-0.3145,0.0687,-0.7200,0.0066,0.5087) 0.7743 (-0.2824,0.1341,-0.4068,0.0195,0.3208,-0.3783,-0.5111,-0.4787) 0.5885 (0.0040,-0.0563,-0.1471,-0.0019,-0.5576,0.2004,-0.7143,0.3373) 0.3562 (0.1220,-0.0732,0.5226,0.0291,-0.5244,-0.3901,-0.0495,-0.5256) 0.0995 (0.0142,0.4943,-0.4591,0.3277,-0.4242,-0.3359,0.3554,0.1352) 0.0209 (0.8455,-0.1518,-0.3917,-0.2695,0.0148,-0.0173,-0.0072,-0.1882) 0.0017 (0.0380,-0.6519,-0.1584,0.7377,0.0328,-0.0371,0.0342,-0.0255) 设累计贡献率大于75%的主成分为 ,则综合得分 的表达式为( ).