Find the probability that the binomial random variable B(10,

ilovening2022-10-04 11:39:541条回答

Find the probability that the binomial random variable B(10,0.4) has the value 6.That is,find Pr[B(10,0.4) = 6].
A..9452x09
B..1115x09
C..8338x09
D..0425x09
E..9877

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Followinghim 共回答了16个问题 | 采纳率81.3%
B
二项分布,套公式
1年前

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第3次头朝上概率是1/2,因为他们是独立事件
求助一道语法题over a very large number of trails,the probability of
求助一道语法题
over a very large number of trails,the probability of an event_____is equal to the probability that it will not occur.
A.occuring B.to occur C.occurs D.occur
我第一遍选的是B,因为觉得事件是在未来的时间发生的,因此选了不定式,可答案错了,求语法帝指教~
我是根据后面的it will not occur 推出是将来发生,因此选的不定式,求解释清楚B为什么不对~
bomb1年前6
cpla_dog 共回答了21个问题 | 采纳率90.5%
我们先分析一下句子:
1、over a very large number of trails是状语从句,暂不考虑;
2、后面的句子主干为A is equal to B.
A:the possibility of an event (occur)
B:the possibility that it will not occur
由于一个句子只能是一个谓语,即is,故A和B都是非谓语成分;排除C和D选项.
A和B两个成分简单来看都是一个词the possibility,只不过A是of短语修饰the possibility,B是that引导的名词性从句.事件确实是现在没有发生,不过这里描述的是一般性事实,应该选择A occuring.
翻译汉语为:事情发生的可能性和不发生的可能性是一样的.
probability这个单词中,从中抽取一个字母;(1)是元音字的概率是多少?;(2)是辅音字母的概率是多少?
cn37968281年前2
人左木右 共回答了14个问题 | 采纳率92.9%
1)元音字母的概率是4/11
2)辅音字母的概率是7/11
该单词共11个字母,辅音7个,元音4个.
绝对正确,希望可以帮到楼主.
英语翻译In all probability it was the fertile plain of Latium,wh
英语翻译
In all probability it was the fertile plain of Latium,where the Latins who founded Rome originated,that created the habits and skills of landed settlement,landed property,landed economy,landed administration,and a land-based society.
where the Latins who founded Rome originated 为什么originated修饰的是Rome,而不是做Latins 的谓语动词.
我爱仁旭1年前3
简爱小筑 共回答了20个问题 | 采纳率95%
圣人都会犯错,所以您老师理解错误并不奇怪.originated 修饰的不可能是Rome,它就是the Latins 或 the Latins who founded Rome 的谓语动词.如果把句子重组一下,可能更容易明白:
The Latins,who founded Rome,probably originated from the fertile plain of Latium that created the habits and skills of landed settlement,landed property,landed economy,landed administration,and a land-based society.
在11张卡片上分别写上PROBABILITY这11个字母,从中连抽7张,求其排列结果为ABILIT
jojojoka1年前1
bj_nqr 共回答了26个问题 | 采纳率88.5%
A出现的机率是1/11
B出现的机率是2/10
I出现的机率是2/9(第一个I)
L出现的机率是1/8
I出现的机率是1/7(第二个I)
T出现的机率是1/6
Y出现的机率是1/5
ABILITY出现的机率就是(1/11)*(2/10)*(2/9)*(1/8)*(1/7)*(1/6)*(1/5)=4/(11*10*9*8*7*6*5)=1/415800的机率.
What is the probability of bbCcDDEe offspring from A cross o
What is the probability of bbCcDDEe offspring from A cross of two BbCcDdEe parents?
两个都是A cross BbCcDdEe 的父母有多少可能性生出bbCcDDEe的后代?..
万恶的生物.
不过我的意思是用bio的方法((Punnett square)解释可能性(the expected probability)...不是翻译这道题。>"'
tony18811年前1
dongwenwen1986 共回答了27个问题 | 采纳率96.3%
Bb X Bb 得到bb的概率为1/4
Cc X Cc 得到Cc的概率为 1/2
Dd X Dd得到DD的概率为1/4
Ee X Ee得到Ee的概率为 1/2
所以总概率为1/4*1/2*1/4*1/2=1/64
英语翻译第一段:In probability theory,the coupon collector's problem
英语翻译
第一段:In probability theory,the coupon collector's problem describes the "collect all coupons and win" contests.It asks the following question:Suppose that there are n different coupons,equally likely,from which coupons are being collected with replacement.What is the probability that more than t sample trials are needed to collect all n coupons?An alternative statement is:Given n coupons,how many coupons do you expect you need to draw with replacement before having drawn each coupon at least once?The mathematical analysis of the problem reveals that the expected number of trials needed grows as …… For example,when n = 50 it takes about 225[2] trials to collect all 50 coupons.
第二段:The key to solving the problem is understanding that it takes very little time to collect the first few coupons.On the other hand,it takes a long time to collect the last few coupons.In fact,for 50 coupons,it takes on average 50 trials to collect the very last coupon after the other 49 coupons have been collected.This is why the expected time to collect all coupons is much longer than 50.The idea now is to split the total time into 50 intervals where the expected time can be calculated.
作为一个热爱数学的英语学渣,或者用你自己的话告诉我“优惠券收集问题”是怎么一回事以及它的公式.
cyychk1年前3
jianqiu238 共回答了15个问题 | 采纳率80%
第一段:在概率论,优惠券收集器的问题描述了“收集所有优惠券和赢”竞赛.它回答了以下问题:假设有n个不同的优惠券,同样有可能的是,从中收集优惠券与更换.什么是概率,超过t样品试验是需要收集所有n优惠券吗?另一个声明:鉴于n优惠券,优惠券你期望多少你需要绘制与更换前有至少一次绘制每个优惠券吗?问题的数学分析表明,试验需要的预期数量随着……例如,当n = 50花大约225[2]试验收集所有50个优惠券.
第一段:解决这个问题的关键是理解,只需要很少的时间收集最初几个优惠券.另一方面,它需要很长时间来收集过去几个优惠券.事实上,对于50个优惠券,需要花费平均50试验收集最后一息票后优惠券已经收集了其他49.这就是为什么预期的时间来收集所有优惠券远远超过50个.现在的想法是把总时间为50个间隔,可以计算出预期的时间.
希望以上的翻译你满意.如满意,还望采纳,多谢!
what is the probability that a prime number is less than 7,g
what is the probability that a prime number is less than 7,given that it is less than 13.
我的理解是在小于13的数中小于7且为素数的几率有多大 答案是1/2
lf2111年前1
haoyinaini 共回答了19个问题 | 采纳率89.5%
素数有2,3,5,7,11,13
小于7的有3个,一共6个,答案就是二分之一啊
The probability that a vehicle entering the Luray Caverns ha
The probability that a vehicle entering the Luray Caverns has Canadian license plates is
0.12; the probability that it is a camper is 0.28; and the probability that it is a camper
with Canadian license plates is 0.09.What is the probability that
(a) a camper entering the Luray Caverns has Canadian license plates?
(b) a vehicle with Canadian license plates entering the Luray Caverns is a camper?
(c) a vehicle entering the Luray Caverns does not have Canadian plates or is not a
camper?
tiger09331年前1
autumnqy 共回答了18个问题 | 采纳率88.9%
A :Camper
B :With Canadian license plates
By given hypothesis,P(A) = 0.28,P(B) = 0.12,P(A and B) = 0.09.
(a) 0.09.
(b) = P( A | B)
= P( A and B ) / P(B)
= 0.09 / 0.12
= 0.75
(c) = P( A' or B' )
long-term capsizing probability
xueya1251年前4
seasky00 共回答了14个问题 | 采纳率100%
long-term capsizing probability(长期倾覆概率)
Over a very large number of trials,the probability of an eve
Over a very large number of trials,the probability of an event's occurring is equal to the probability that it will not occur.为什么是event's occurring 而不是event will occur和后面一致,还有 over都有什么用法,什么情况下使用它,有句话是By the middle of the twentieth century,painters and sculptors in the United States had begun to exert a great worldwide influence over art.为什么用over不用on
allen_艾伦1年前3
tezhong84 共回答了18个问题 | 采纳率88.9%
第一句:over在..之中(参考楼上)介词
第二句:exert a great worldwide influence over、on art
over 和on 都可以,但是over的范围更大,表示覆盖,说明对其影响非常大,介词.
the probability of an event's occurring= the probability that an event will occurr.
that引导同位语从句,这里考的恰恰不是平行结构,而是避免重复.
希望能帮到您.
相对拓扑的定义到底是什么?《real analysis and probability》中给出的定义是若(X,T)是个拓
相对拓扑的定义到底是什么?
《real analysis and probability》中给出的定义是若(X,T)是个拓扑并有Y包含于X,则{U∪Y,U∈T}也是个拓扑,即相对拓扑.反例:显然(R,R上所有开区间)就是个拓扑,取Y=[1,2],则{U∪Y,U∈T}={∅,R,(a,b)a≥1b≤2}.显然Y=[1,2]不在这个集类里,所以它不是个拓扑嘛!
xusam1年前1
相思的人 共回答了18个问题 | 采纳率88.9%
[1,2]为什么不在这个集类里呢,取U=(0,3)是R上的开区间
不就有U∪Y=Y=[1,2]
The probability density function of a random variable X is f
The probability density function of a random variable X is f(X)
(a)show that E(aX+b)=aE(X)+b
(b)Var(aX+b)=a^2Var(X)
(c)Var(X)=E(X^2)-{E(X)}^2
vv的傲雪1年前2
herozhou1985 共回答了21个问题 | 采纳率85.7%
(a):Proof:E[aX+b] = Sum pi(axi +b)
= Sum (pi (axi) + pi (b))
= Sum (pi axi)+ Sum ( pi b)
= aSum (pi xi)+ bSum ( pi),Sum( pi) = 1,所以 Sumaxi = aSxi
= aE[X] + b
(b) Proof:
Var(X) = E([X-E(X)]2
= E(X^2)-2XE(X) + E(X)^2,x=E(x)
= E(X^2) -2E(X)E(X) + E(X)^2
= E(X^2)-E(X)^2
(c)
Proof:Var[aX+b]
= E([(aX + b)- E(aX + b)]^2)
= (a^2E[X^2] + 2abE[X] +b^2) – (a^2E[X]^2+2abE[X]+b^2)
= a^2E[X^2] - a^2E[X]^2
= a^2(E[X^2] - E[X]^2)
= a^2Var[X]
概率统计方面的问题:Suppose a coin has probability p of falling heads.
概率统计方面的问题:
Suppose a coin has probability p of falling heads.If we flip the coin many times,we would expect the proportion of heads to be near p.We will make this formal later.Take p=0.3 and n=1000 and simulate n coin flips.Plot the proportion of heads as a function of n.Repeat for p=0.03.
用matlab如何实现?
翻遭aa噬1年前2
liningjacky 共回答了18个问题 | 采纳率88.9%
Suppose a coin has probability p of falling heads.If we flip the coin many times,we would expect the proportion of heads to be near p.We will make this formal later.Take p=0.3 and n=1000 and simulate n coin flips.Plot the proportion of heads as a function of n.Repeat for p=0.03.
用matlab如何实现?
the probability i would meet you in the a great world is les
the probability i would meet you in the a great world is less than 6000000000 to 1
爱已蒸发1年前3
许丹青 共回答了24个问题 | 采纳率87.5%
在这个偌大的世界里,我能遇到你的几率不足6000000000分之1.
不算语病把,只能说是中国式的英语
在 probability 中 任意取个字母 取道 b 的概率
在 probability 中 任意取个字母 取道 b 的概率
送分啊快来人呐
qq369qq21年前2
冬天-悟 共回答了22个问题 | 采纳率100%
2/11
非常简单的一道概率题If p is the probability that event E will happen a
非常简单的一道概率题
If p is the probability that event E will happen and q is the probability that event E will not happen,which of the following is/are ture?
(1) p+q=1
(2) 0
seaboy2231年前2
77031444 共回答了19个问题 | 采纳率94.7%
如果p是概率事件E的发生的可能性和q是概率事件E的不发生可能性,下列哪些是真?
1对
2不对,应该是0≤Q≤1
3错
所以选择 A
likelihook possibility probability 这三个可能性的用法
guyan12281年前2
不懂乱猜 共回答了17个问题 | 采纳率88.2%
likelihood = probability 都是概率的意思
这两个词是客观的可能性,可以表示有可能,也可以表示没可能,比如:
The likelihood of getting the disease is very high.
The probability of getting 100 points is very low.
possibility 是有可能的意思
there is a possibility that something will happen.
注意,如果把上面的句子改成:
there is a probability that something will happen.
意思就由原来的某事可能发生,变成某事很可能发生.
也就是说probability有两种用法,一个和likelihood一样,表示概率;一个比possbility意思相似但程度更深,表示很可能
大学统计题目SupposeX ∼ N(µ,σ2).If 10% of the probability is below
大学统计题目
SupposeX ∼ N(µ,σ2).If 10% of the probability is below 60 and 5% is above 90,
(a) What are the values of µ and
(b) What is the value c such that the interval(µ −c,µ + c) includes 98% of all values?
tristanyuan1年前1
fengxueqin99 共回答了19个问题 | 采纳率89.5%
P(X90)=1-P(X