新版gre数学复习重要考点：Conditional
<p> 俗话说：工欲善其事必先利其器。很多参加了新版<span word="gre">gre</span>考试的同学都觉得数学有点难度，相信这其中的原因还是由于考生在新版<span word="gre">gre</span>数学复习时没有把基础打牢。如果新版<span word="gre">gre</span>数学基本考点都没有复习到，如何能拿到分数呢?所以说，想要新版<span word="gre">gre</span>数学考好，复习的时候一定要把基本概念和重要考点都弄扎实。</p><p> 今天针对新版<span word="gre">gre</span>数学复习，小编给大家整理的是关于<span word="Conditional">Conditional</span>的相关内容，这些概念在考试中一定会考到的。希望考生能再接再厉，取得一个好成绩，突破新版<span word="gre">gre</span>数学难的困境。</p><p> 新版<span word="gre">gre</span>数学复习重要考点：<span word="Conditional">Conditional</span></p><p> <span word="Probability">Probability</span> <span word="of">of</span> <span word="event">event</span> <span word="A">A</span> <span word="conditioned">conditioned</span> <span word="on">on</span> <span word="the">the</span> <span word="fact">fact</span> <span word="that">that</span> <span word="event">event</span> <span word="B">B</span> <span word="has">has</span> <span word="happened">happened</span> <span word="is">is</span> <span word="called">called</span> <span word="the">the</span> <span word="conditional">conditional</span> <span word="probability">probability</span> <span word="and">and</span> <span word="written">written</span> <span word="as">as</span> <span word="P">P</span>.</p><p> <span word="P">P</span>=<span word="Probability">Probability</span> <span word="Both">Both</span> <span word="A">A</span> <span word="and">and</span> <span word="B">B</span> <span word="happens">happens</span>/ <span word="Probability">Probability</span> <span word="B">B</span> <span word="happens">happens</span>.</p><p> <span word="Example">Example</span>:</p><p> <span word="A">A</span> <span word="six">six</span>-<span word="sided">sided</span> <span word="die">die</span> <span word="with">with</span> <span word="faces">faces</span> <span word="from">from</span> 1 <span word="to">to</span> 6 <span word="is">is</span> <span word="rolled">rolled</span> <span word="twice">twice</span>. <span word="What">What</span> <span word="is">is</span> <span word="the">the</span> <span word="probability">probability</span> <span word="that">that</span> <span word="the">the</span> <span word="face">face</span> 5 <span word="turned">turned</span> <span word="up">up</span> <span word="on">on</span> <span word="first">first</span> <span word="try">try</span> <span word="given">given</span> <span word="that">that</span> <span word="the">the</span> <span word="sum">sum</span> <span word="of">of</span> <span word="the">the</span> <span word="two">two</span> <span word="faces">faces</span> <span word="is">is</span> 9?</p><p> <span word="P">P</span>=4/36=1/9.</p><p> <span word="P">P</span>==1/36.</p><p> <span word="P">P</span>==1/4.</p><p> <span word="Remember">Remember</span>:</p><p> <span word="If">If</span> <span word="P">P</span>=<span word="P">P</span>,<span word="then">then</span> <span word="two">two</span> <span word="events">events</span> <span word="A">A</span> <span word="and">and</span> <span word="B">B</span> <span word="are">are</span> <span word="independent">independent</span>, <span word="that">that</span> <span word="is">is</span> <span word="occurrence">occurrence</span> <span word="of">of</span> <span word="one">one</span> <span word="does">does</span> <span word="not">not</span> <span word="influence">influence</span> <span word="the">the</span> <span word="other">other</span>.</p><p> 很多新版<span word="gre">gre</span>数学复习考点都是高中时候学到的知识点，考生不要过于紧张，把基本概念弄明白，再记住一些新版<span word="gre">gre</span>数学必备的词汇，那么相信新版<span word="gre">gre</span>数学应该没有问题。</p>
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