题目
The probability of an event given that another event has occurred is a:
选项
A.joint probability.
B.marginal probability.
C.conditional probability.
答案
C
解析
： C is correct. A conditional probability is the probability of an event given that another event has occurred. ： C正确。 条件概率是一个事件在另一个事件已经发生的情况下发生的概率。