NO.PZ2020010303000001
问题如下：
What is the name of the distribution that describes any random binary event?
选项：
解释：
Any binary random variable can be described as a Bernoulli by mapping the outcomes to 0 or 1. For example, a corporate default (1 for default) or the direction of the marker (1 for positive return).
描述二元随机变量的分布，二项分布每次试验也是两次结果，为什么不属于呢
