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A packet consisting of a string of n symbols is transmitted over a noisy channel. Each symbol has probability p =0.0001 of being transmitted in error, independently of errors in the other symbols. How small should n be in order for the probability of incorrect transmission(at least one symbol in error) to be less than 0.001? 這是某年台大電機研究所的考題,被學校老師拿來當期中考考題,請客位高手大大可 幫小弟我寫出詳解,資質不好,請各位考手可以不吝色賜教,小弟百般感謝!! -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 61.223.232.240
yhliu :求 n 的界限, 使 binomial(n,0.0001) 之隨機變數 X 05/26 00:17
yhliu :滿足 P[X>0] < 0.001. 用 Poisson 分布近似之. 05/26 00:17