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贵刊文[1]介绍了“七星彩”的中奖问题,并计算出“七星彩”中奖的概率是0.0548884.但笔者认为“七星彩”中奖的概率是0.054487.文[1]产生错误的原因是第6节“任买一注彩票中六等奖的概率”中的解法有误,正确的解法应当是:设某次摇奖的结果是a_1a_2_a_3a_4a_5a_6a_7(ai∈{0,1,2,…,9},i=1,2,…,7).若“七星彩”中六等奖,则“七星彩”的号码只
Your paper [1] introduced the winning problem of “Seven Stars ” and calculated the probability of “Seven Stars ” winning is 0.0548884. However, I believe “Seven Stars ” The probability of winning is 0.054487. The reason for the mistake is that in Section 6, “The Probability of Purchasing a Sixth Prize in a Lottery Ticket” is incorrect. The correct solution should be: Suppose the result of a lottery is a_1a_2_a_3a_4a_5a_6a_7 (ai∈ {0,1 , 2, ..., 9}, i = 1, 2, ..., 7). If “Six Star” is the sixth prize, then the number of “Seven Stars”