新GRE數(shù)學考試的考點都是高中時候學到的知識點，考生不要過于緊張，把基本概念弄明白，再記住一些新GRE數(shù)學必備的詞匯，那么相信新GRE數(shù)學應該沒有問題。
    At Least Once
    If probability of an event happening is p, then the probability that the event happens at least once in n trials is 1-(1-p)∧n.
    Example:
    To understand the equation follow these steps:
    1.The probability of the event not happening is 1-p.
    2.The probability it won't happen n-times in a row is (1-p)∧n.
    3.Probability it will happen at least once is 1-(1-p)∧n.
    Probability that a roll of a six-sided die land with face 1 is 1/6.Then the probability that 1 will turn up at least once in 3 tries:=1-(1-1/6)∧3=1-(5/6)∧3.
    Remember:
    It is much harder to directly calculate the at-least-once probability.
    有一部分考生認為新GRE數(shù)學具有一定的難度，這其中的原因是由于考生在復習時沒有把新GRE數(shù)學的基礎打牢。想要新GRE數(shù)學考好，復習的時候一定要把基本概念和重要考點都弄扎實。祝大家都能取得理想成績!