NO.PZ2017092702000092
问题如下：
Which of the following events can be represented as a Bernoulli trial?
选项：
A.The flip of a coin
B.The closing price of a stock
C.The picking of a random integer between 1 and 10
解释：
A is correct.
A trial, such as a coin flip, will produce one of two outcomes. Such a trial is a Bernoulli trial.
一次试验，例如掷硬币，将产生两种结果之一。 这样的试验就是伯努利试验。
伯努利实验 和2叉树是不是一个意思
