Over a very large number of trials, the pr
题型:单项选择题
问题:
Over a very large number of trials, the probability of an event ________ is equal to the probability that it will not occur.
A.occurring
B.to occur
C.occurs
D.occur
Over a very large number of trials, the probability of an event ________ is equal to the probability that it will not occur.
A.occurring
B.to occur
C.occurs
D.occur