[計量] CAT test.17 27.
There are 27 students on the school dabate team.
What is the probability that at least 3 of them
have their birthdays in the same month?
A 1
B 1/2
C 1/4
D 1/9
E 0
Ans:A
實在想不太通
煩請版友幫忙了 謝謝
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 59.120.199.114
討論串 (同標題文章)
以下文章回應了本文:
完整討論串 (本文為第 1 之 2 篇):
GRE 近期熱門文章
PTT職涯區 即時熱門文章
103
276