GRE数学考点解析-2-智课教育旗下智课教育.pdf

智 课 网 G R E 备 考 资 料 GRE数学考点解析-2-智课教育旗下智课教育 本文重点为考生分享下GRE数学考点解析，大家可以参考以下内容 进行学习，希望大家尽快掌握GRE数学备考方法，顺利取得高分。 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 wont 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. 以上就是为大家总结的GRE数学题复习方法的相关内容，仅供大家 参考，最后，祝大家考出满意的GRE高分。更多出国考试信息敬请关注 智课教育GRE频道。