NO.PZ2020010301000017
问题如下：
Based on the probabilities in the diagram below, considering the three distinct pairs of events, how many of these pairs are independent?
选项：
A.0
B.1
C.2
D.3
解释：
We can use the rule that events are independent if their joint probability is the product of the probability of each. Pr(A) = 48%, Pr(B) = 55%, Pr(C) = 53%, Pr(A∩B) = 21% ≠ (48% * 55%), Pr(A∩C) = 25% ≠ (48% * 53%), Pr(B∩C) = 28% ≠ (55% * 53%). None of these events are pairwise independent.
这道题可以通过看图、不计算就知道答案吗？
