A and B have seven suitcases in total. They waited for their suitcases to go through security. Security agents were required to pick two of the 15 suitcases at random for security screening. What was the probability that the selected two suitcases belong to A or B?
-
A0.05
-
B0.1
-
C0.15
-
D0.2
-
E0.25
显示答案
正确答案: D