概率论第一个基本原理中的一条是事件的独立性。
One of the first principles of probability is the idea of independence.
对事件的独立性、互不相容性进行了剖析，并讨论了独立性、互不相容性与零概率事件的关系。
This paper analyzes the events independences and incompatibility, and discusses some relations among independence, incompatibility and null events.
向孩子们展示必然事件的独立性或是解释一个事件和另一个事件的关系，帮助孩子们更好的理解他们听到的东西。
Showing that certain events are isolated or explaining how one event relates to another helps kids make better sense of what they hear.
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