用帕松分布算一算。千分之一死亡率的病，在200人里死两个的概率不到2%

来源: STEMkid 于 2025-03-13 10:29:00 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.