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我区在2013~2014学年度九年级数学测试中有这么一道有关概率的选择题:题目某校九年级一班共有学生50人,现在对他们的生日(可以不同年)进行统计,则正确的说法是()(A)至少有两名学生生日相同(B)不可能有两名学生生日相同(C)可能有两名学生生日相同,但可能性不大(D)可能有两名学生生日相同,且可能性很大大多教师看到这道题后,感到很吃惊和意外,并且争议很大:一是正确答案难以确定?二是此题涉及的知识内容已经严重超标了.
My district in the ninth grade math 2013-2014 mathematics test so there is a multiple choice of probability questions: a school ninth grade a total of 50 students a class, and now their birthday (in different years) statistics, the correct (A) At least two students have the same birthday (B) There may not be two students with the same birthday (C) There may be two students with the same birthday, but unlikely (D) There may be two students’ birthday The same, and the possibility is very large Most teachers saw this problem, was surprised and surprised, and controversial: First, the correct answer is difficult to determine? Second, the subject of knowledge has seriously exceeded the content.