作者xup6xu6 (是女的都好)
看板Statistics
标题[问题] 要使用何种机率分布??
时间Mon Nov 9 00:47:20 2009
Let p1 denote the probability that any particular code symbol is erroneously
transmitted through a communication system.
Assume that on different symbols, errors occur independently of one another.
Suppose also that with probability p2 an erroneous symbol is corrected upon
receipt.
Let X denote the number of correct symbols in a message block consisting of
n symbols. What is the probability distribution of X?
我自己翻的题意: 每个样本参数皆互相独立
p1 为错误的机率
p2 为错误发生後被更正的机率
X 为 n 个样本中，事件为正确的样本数量
不知道有没有翻错= =||
想问各位这题是纯粹在问 X 是属於何种机率分布?
还是说要把 X 的机率分布算出来??
另外这题是要用 b(x;n,p) 算，还是用 nb(x;r,p) ???
感激不尽~~
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※ xup6xu6:转录至看板 ask 11/09 01:07