继续问数学题！！！请各位指导啊啊啊啊啊！！><

dt815

If 2 different representatives are to be selected at random from a group of 10 employees and if p is the probability that both representatives selected will be women, is p >  ?
(1)      More than   of the 10 employees are women.
(2)      The probability that both representatives selected will be men is less than  .
    
A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient.

好不懂为什么这个题要选E而不是D捏。。。

A certain company assigns employees to offices in such a way that some of the offices can be empty and more than one employee can be assigned to an office.  In how many ways can the company assign 3 employees to 2 different offices?

A.    5
B.    6
C.    7
D.    8
E.    9

还有这个题啊。。。我根本连题都没有看懂。。。

GTI

+1

GTI

第一题楼主没把数据给出，我猜估计是算出的都是女人的概率是个范围，然后P在此范围中，所以无法确定。
（一二两条件都能求都是女人的概率）

dt815

第一题楼主没把数据给出，我猜估计是算出的都是女人的概率是个范围，然后P在此范围中，所以无法确定。
（一二两条件都能求都是女人的概率）

-- by 会员 GTI (2012/5/9 15:08:11)

第一个条件是女人大于二分之一。。。

emasculation

下面那一題，安排三個員工到兩間辦公室，有幾種方式，辦公室可以空，也可以超過一人
每個員工有兩個選擇，共三個員工，故2*2*2=8