新gre數(shù)學(xué)重要考點(diǎn):At Least Once
2023新gre考試實(shí)施以來(lái),不僅對(duì)寫(xiě)作部分茫然不知所措,就連我們所擅長(zhǎng)的數(shù)學(xué)也甚是擔(dān)憂,相信這其中的原因還是由于考生在新gre數(shù)學(xué)復(fù)習(xí)時(shí)沒(méi)有把基礎(chǔ)打牢。如果新版gre數(shù)學(xué)基本考點(diǎn)都沒(méi)有復(fù)習(xí)到,如何能拿到分?jǐn)?shù)呢?所以說(shuō),想要新版gre數(shù)學(xué)考好,復(fù)習(xí)的時(shí)候一定要把基本概念和重要考點(diǎn)都弄扎實(shí)。
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-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 n.
3.Probability it will happen at least once is 1-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:=1-3=1-3.
Remember:
It is much harder to directly calculate the at-least-once probability.
由于美國(guó)數(shù)學(xué)基礎(chǔ)教育的難度增加導(dǎo)致數(shù)學(xué)考試越來(lái)越難,但新gre數(shù)學(xué)復(fù)習(xí)考點(diǎn)都是高中時(shí)候?qū)W到的知識(shí)點(diǎn),考生不要過(guò)于緊張,把基本概念弄明白,再記住一些新版gre數(shù)學(xué)必備的詞匯,那么相信新版gre數(shù)學(xué)應(yīng)該沒(méi)有問(wèn)題。
2023新gre考試實(shí)施以來(lái),不僅對(duì)寫(xiě)作部分茫然不知所措,就連我們所擅長(zhǎng)的數(shù)學(xué)也甚是擔(dān)憂,相信這其中的原因還是由于考生在新gre數(shù)學(xué)復(fù)習(xí)時(shí)沒(méi)有把基礎(chǔ)打牢。如果新版gre數(shù)學(xué)基本考點(diǎn)都沒(méi)有復(fù)習(xí)到,如何能拿到分?jǐn)?shù)呢?所以說(shuō),想要新版gre數(shù)學(xué)考好,復(fù)習(xí)的時(shí)候一定要把基本概念和重要考點(diǎn)都弄扎實(shí)。
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-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 n.
3.Probability it will happen at least once is 1-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:=1-3=1-3.
Remember:
It is much harder to directly calculate the at-least-once probability.
由于美國(guó)數(shù)學(xué)基礎(chǔ)教育的難度增加導(dǎo)致數(shù)學(xué)考試越來(lái)越難,但新gre數(shù)學(xué)復(fù)習(xí)考點(diǎn)都是高中時(shí)候?qū)W到的知識(shí)點(diǎn),考生不要過(guò)于緊張,把基本概念弄明白,再記住一些新版gre數(shù)學(xué)必備的詞匯,那么相信新版gre數(shù)學(xué)應(yīng)該沒(méi)有問(wèn)題。