...b(0，400，0.02) -b(1，400，0.02)＝0．9972． 10.1 随机事件与概率 引例 10.1 随机事件与概率 随机性决策(decision under risk) 在不确定的状态下，根据主观概率和决策人的偏好对备选方案作出选择的决 策方法，又称风险型决策。
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和其他决策及其风险不同的是，行政决策风险具有持久性、随机性、普遍性和可调性等特征。
Compared with that of other decision-makings, the risks in the course of making an administrative decision are often characterised by long term, randomness, wide scale and adjustability.
车辆跟驰模型中的驾驶行为是一个复杂的推理、决策、执行过程，在知识表达和推理机制上存在模糊性和随机性。
Driving decision in the car following model is a complex process of reasoning, deciding and executing. There are a lot of vagueness and randomness in knowledge description and reasoning mechanism.
本文说明了IC生产工艺的随机性及其给工艺控制和决策带来的困难。
The stochastic nature of the IC fabrication process and the resulting difficulties in the process control are described.
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