推 CCWck :28人 四個星期一出生 四個星期二出生..... 03/22 22:03
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 114.47.75.124
Find the probability that in a class of 28 students exactly four were born in
each of the seven days of the week
看不太懂題目的意思,先感謝幫忙回答的人
--