题目信息
A gumball dispenser has 24 gumballs, 12 white and 12 black, which are dispensed at random. If the first 3 gumballs dispensed are black, what is the probability that the next gumball dispensed will be black?
A:$$\frac{1}{2}$$
B:$$\frac{1}{3}$$
C:$$\frac{1}{4}$$
D:$$\frac{3}{7}$$
E:$$\frac{3}{8}$$
参考答案及共享解析

共享解析来源为网络权威资源、GMAT高分考生等; 如有疑问,欢迎在评论区提问与讨论
本题耗时:
已选答案:
正确答案:
D:$$\frac{3}{7}$$
权威答案解析正在整理中,即将上线。


题目来源