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从图中可以看出,从2016年到2021年,橙色线与红色线左右的事故发生频数差不多,符合指数分布。这说明从2016年到2021年,死亡人数未被大量修改。 It can be seen from the figure that from 2016 to 2021, the frequency of accidents around the orange line and the red line is similar, which conforms to the exponential distribution. This illustrates that the death toll has not been substantially revised from 2016 to 2021.