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Post by Angers 1) 只命中两次:.7x.7x.3x.3 = 0.0441 一共有 C4-2 的组合 = 6 0.0441 x 6 = .26 2) 同理, 5次的概率是 0.6^5 + 4次的概率 0.6^4x0.4xC5-4 = 0.34 ?
Post by 栀子花 栀子花和Spring, zxyzxy,于昨天下午2时许,在Mcgill图书馆欢聚一堂,相谈甚欢,期间就许多重大问题交换了意见,并描绘了下一个五年计划的蓝图。
Post by zxyzxy 是的, 本人在两位盟友,特别是SPRING的帮助下, 向攻克GMAT这一世界难题向前迈进了阶段性的一步. ;) 不胜感激, 借此一隅,以表感谢.
Post by 栀子花 又多了一个战友,太好了。 AllenHZKK,请问你现在GMAT大约是准备到什么程度了呢,可以说说么?这样大家可以互相促进一下进度哦。
Post by ALLENHZKK i am just begin,i need information.how about you.can we have a meeting together. hope to hold one recentely.
Post by 栀子花 hi, Allenhzkk I just began last Monday. Maybe we can learn from each other together. How about meet every Friday afternoon at the library of Mcgill?
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