数学题,What is the probability of getting at least three heads when flipping four coins?过程 谢谢.
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数学题,Whatistheprobabilityofgettingatleastthreeheadswhenflippingfourcoins?过程谢谢.数学题,Whatistheprobabilit
数学题,What is the probability of getting at least three heads when flipping four coins?过程 谢谢.
数学题,What is the probability of getting at least three heads when flipping four coins?
过程 谢谢.
数学题,What is the probability of getting at least three heads when flipping four coins?过程 谢谢.
这是数学概率事件吧,
题目翻译为 抛4枚硬币,得到至少3次头像面的几率是多少、
至少三次 就包含3次和4次两种情况.
概率计算为(排列组合4次中随机选择3次要求其出现正面剩余一次出现反面)4×0.5×0.5×0.5×0.5+(4次都正面)1/16
结果为5/16
抛四个硬币至少三个是正面的概率??1/3
抛四个硬币至少三个是正面的概率,即是有三个正面和有四个正面:1/2*1/2*1/2*(1-1/2)+1/2*1/2*1/2*1/2=1/8
Question 3.A company receives a very large shipment of electronic components.A random sample of seventeen of these components is drawn from the shipment,and the shipment is accepted if fewer than two of these components are defective.What is the prob
what the writer tries to tell us by the storyOne of the best things you can do for your dog and yourself is to obedience train(驯服)it.Obedience training doesn’t solve all behavior problems,but it is the foundation for solving just about any prob
[English]好心人帮指点句型!So what is the real problem?那么问题到低是什么?分析:So为程度副词可放在句首做程度状语,what is一般用在关于“是什么”的疑问句中,real为形容词做定语修饰后面宾语prob
what means by Though it probably has its momentswhole sentences:The anticipation has ruled his life, and now, finally, the wait is over. You're sometimes led to believe that this person is actually relieved, but I've never bought it. Though it prob
if 5 more than x is equal to 10,what is the value of SAT数学题,
When you get up in the morning,do you find it hard to choose what clothes to wear?If so,you prob
英语高手教几道题目,悬赏30分1.Those exchange students are ___(most) from Canada.2.I don't ___(real) know what ___(do).3.Star Shopping Mall closes at 10p.m.(同义句) Star Shopping Mall ___ closes ___ 10p.m.4.Pollution is the biggest prob
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