计算概率问题.题目如下.Two independent remote sensing devices, A and B, mounted on an airplane are used to determine the locations of disease tress in a large area of forest land. The detectability of device A is 0.8 ( that is, the probabili

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计算概率问题.题目如下.Twoindependentremotesensingdevices,AandB,mountedonanairplaneareusedtodeterminethelocatio

计算概率问题.题目如下.Two independent remote sensing devices, A and B, mounted on an airplane are used to determine the locations of disease tress in a large area of forest land. The detectability of device A is 0.8 ( that is, the probabili
计算概率问题.题目如下.
Two independent remote sensing devices, A and B, mounted on an airplane are used to determine the locations of disease tress in a large area of forest land. The detectability of device A is 0.8 ( that is, the probability that a group of diseased tress will be detected by device A is 0.8), whereas the detectability of device B is 0.9. However, when a group of diseased tress has been detected its location many not be pinpointed accurately by either device. Based on a detection from device A alone, the location can be accurately determined with probability 0.7, whereas the corresponding probability with device B alone is only 0.4. If the same group of diseased trees is detected by both devices , its location can be pinpointed with certainty. Determine the following.
(a) The probability that a group of diseased trees will be detected.
(b) The probability that a group of diseased trees will be detected by only one device
(c) The probability of accurately locating a group of diseased trees
a) 0.98 (b) 0.26 (c) 0.848
想问一下第三问怎么求出来的? 谢谢!感激不尽!

计算概率问题.题目如下.Two independent remote sensing devices, A and B, mounted on an airplane are used to determine the locations of disease tress in a large area of forest land. The detectability of device A is 0.8 ( that is, the probabili
1-0.2*0.1=0.98
0.9*0.2+0.8*0.1=0.26
仅被A发现定位 +仅被B发现定位+两个都发现可以100%定位(If the same group of diseased trees is detected by both devices ,its location can be pinpointed with certainty.)!
0.8*0.1*0.7+0.9*0.2*0.4+0.9*0.8*(1)
=0.056+0.072+0.72
=0.128+0.72=0.848

被AB同时看到,精确定位的概率0.8*0.9得0.72
被A单独发现并定位0.8*0.1*0.7得0.056
被B单独发现并定位0。9*0。2*0。4得0。072合计答案中的数

计算概率问题.题目如下.Two independent remote sensing devices, A and B, mounted on an airplane are used to determine the locations of disease tress in a large area of forest land. The detectability of device A is 0.8 ( that is, the probabili 计算如下题目,要简便, 概率统计题目,期望方差问题 旋转体的体积 问题题目如下: 统计学问题:选择什么统计方法?最近在学习和做题的时候碰到下面几个问题,1、Compare response means among two or more groups adjusted for a quantitative conconmitant variable应该用什么统计方法?2、Compare two inde 如何使用excel公式计算概率问题.问一下你知道如何使用excel计算概率吗?数学模型如下:事情A发生的概率为a事情B发生的概率为b.事情G发生的概率为g请问只有一件事情发的概率是?两件事情同事 为什么错?一个概率计算问题 概率计算问题,求C(3, 概率问问题跪求计算过程 概率中的二重积分计算问题,头大了.如下式,不但要求F(x,y)还要求fx(x)和fy(y) 反常积分的计算问题如下 概率题目 贝叶斯公工计算问题有一个图表如下,是用贝叶斯公式计算的.我是真不知道怎么计算得出来了.要的时详细解题方法和公式 如 当t 时 假设1= 假设概率/(假设概率1*似然比1+ 假设概率2*似然比2+假 概率与统计,题目如下求详细过程,给好评速度.. 高等数学 概率问题 这个题目的概率怎么求 好奇怪,什么意思?为什么 联合概率密度函数值是否有可能大于1?(0,Nf)区间内的的累积分布函数值用用什么命令?我知道一般的概率密度函数值都是小于1的,我有1题计算的联合概率密度函数值大于1,具体题目如下:muX 概率计算 概率计算