Question

在线求概率好看得懂英文题目的大神

10 computers are linked by a single line to a network.Each computer requires a connection to the network for 20% of the time on average. The sessions initiated by
different computers are independent of each other, and 2 computers cannot use
the line at the same time.
a)For k=0,…,10, what is the probability that k computers simultaneously need the line at some fixed time t? what is the most likely number of computers requiring the line at one time?
b)We add linesto the network to allow simultaneous sessions. what is the minimum number c of lines that are required so that the probability of overload at some fixed time t is less 0.007?

Answer 1

10台电脑都是由一个单一的线连接到一个网络。每台计算机需要连接到网络的时间平均为20%。发起的会话
不同的计算机是相互独立的，和2台电脑不能使用
在同一时间线。
一）对于k = 0，信绝……，10，K计算机同时需要在一些固定的时间t的概率键指是多少？最有可能的数量滑亮姿的计算机在同一时间要求的底线是什么？
B）我们把线网络允许同时会话。什么是必需的，在一些固定的时间t的概率小于0.007线路过载的最小数量的C？

Answer 2

直接给答案不给过程行么？

追问

part a 我现在已经知道了，如果你给part b 的过程是最好 (^^)