Click on each symbol to view the associated Venn diagram. Denoted as A' or, more generally as A c the complement of event A , is the set of all events not in event A . A 12-sided die is rolled once. Again, a 12-sided die is rolled once. The notions of probability sometimes require a little digression to ensure some degree of mathematical integrity.
Probability is a function with a set domain, as well as being termed a measure function.
Note the commonplace notation of for the event space, the set of all events associated with an experiment. Sometimes an experiment is sequential, where each in the sequence are independent. Select 2 marbles at random, one at a time, without replacement. Using the previous problem, let BB denote the event of a blue marble on the first draw, and a blue one on the second draw. Let WR denote the event of a white marble on the first draw and a red one on the second draw.