根据某地区2007~2016年居民收入(x:百元)和肉类消费量(y:公斤)资料,求得以下数据:∑x=350,∑y=300,∑xy=11800,∑x²=14000,∑y2=9800,n=10试根据上述资料:(1)建立肉类消费量对居民收入的回归直线方程;(2)解释b的经济意义。(计算结果保留3位小数)
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