A classical probability model was built to solve the DVD quantity based on questionnaire.

根据调查问卷得到的数据，建立概率模型来求解dvd的购买数量。

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In this paper, we deduced the explicit expression of the absolute ruin probability for classical risk model by using of the Markov property and strong Markov property of PDMP.

根据逐段决定马尔可夫过程具有马氏性和强马氏性，本文推导出了在古典风险模型下绝对破产概率的一个明确表达式。

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In order to reduce the outage probability and enhance the stability of cognitive system, an improved algorithm of spectrum allocation based on classical graph coloring model was proposed.

为了降低认知系统的通信中断概率，提高认知系统的稳定性，在经典的图论着色模型基础上提出了一种改进的频谱分配算法。

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