UC知道一道计算概率的考试题！跪求！
来源：百度知道 编辑：UC知道 时间：2024/06/19 20:33:26
Complete the sentence by typing your answers into the textboxes
A box contains 6 blue marbles and 4 red marbles. An experiment is performed in which a marble is chosen at random and its color is observed, but the marble I not replaced. Find the probability that after 4 trials of the experiment, 4 blue marbles will have been chose.
The chance is？
A box contains 6 blue marbles and 4 red marbles. An experiment is performed in which a marble is chosen at random and its color is observed, but the marble I not replaced. Find the probability that after 4 trials of the experiment, 4 blue marbles will have been chose.
The chance is？
“but the marble I not replaced”这句话应该是打错了，我目前理解是，取出以后就不放回去
这样，连续4次取出蓝色大理石的概率是：
（6/10）*（5/9）*（4/8）*（3/7）=1/14