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房产价格回归:仅用 m^2 的模型有 R^2 = 0,70 ( n = 200 )。添加卧室数后, R^2 = 0,78 。计算每个模型的 并决定额外预测变量是否合理。
房产价格回归:仅用 m^2 的模型有 R^2 = 0,70 ( n = 200 )。添加卧室数后, R^2 = 0,78 。计算每个模型的 并决定额外预测变量是否合理。
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