新版GRE数学复习重要考点:Multiple Times

所属专题:GRE数学重要考点  来源:    要点:GRE考试  
编辑点评: 新GRE数学考试的难度有所增加,但是只要大家认真准备,掌握了基本的知识,还是可以在原有的水平上考出出色的分数的。本文为大家整理汇总了新GRE数学考试的复习要点,希望对大家的复习有所帮助。

本文为大家介绍的GRE数学复习考点是“幂”。

新版GRE数学复习重要考点:Multiple Times

If probability of an event happening is p, then the probability that the event happens n times in a row is pn.

Example:

The probability that a coin toss results in head is 0.5. Then the probability that when the coin is tossed twice, both of them are head is 0.52=0.25.

Probability that a roll of a six-sided die land with face 1 is 1/6. Then the probability that 1 will turn up three times in a row is (1/6)3.

Remember:

Note that probability of the event happening does not change from trial to trial.

以上的内容大家一定要好好掌握,在考试的时候发挥出自己应有的水平。  

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